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wine.inf: We should not override existing associations.
[wine/hacks.git] / dlls / comctl32 / treeview.c
blob499faa2eeb40d34ca6c61eb052256107e9af195b
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: All items always! have valid (allocated) pszText field.
27 * If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
28 * of size TEXT_CALLBACK_SIZE in DoSetItem.
29 * We use callbackMask to keep track of fields to be updated.
30 *
31 * TODO:
32 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
33 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
34 *
35 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
36 *
37 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54 #define NONAMELESSSTRUCT
55 #include "windef.h"
56 #include "winbase.h"
57 #include "wingdi.h"
58 #include "winuser.h"
59 #include "winnls.h"
60 #include "commctrl.h"
61 #include "comctl32.h"
62 #include "uxtheme.h"
63 #include "tmschema.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66
67 /* internal structures */
68
69 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
70 {
71 UINT callbackMask;
72 UINT state;
73 UINT stateMask;
74 LPWSTR pszText;
75 int cchTextMax;
76 int iImage;
77 int iSelectedImage;
78 int cChildren;
79 LPARAM lParam;
80 int iIntegral; /* item height multiplier (1 is normal) */
81 int iLevel; /* indentation level:0=root level */
82 HTREEITEM parent; /* handle to parent or 0 if at root */
83 HTREEITEM firstChild; /* handle to first child or 0 if no child */
84 HTREEITEM lastChild;
85 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
86 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
87 RECT rect;
88 LONG linesOffset;
89 LONG stateOffset;
90 LONG imageOffset;
91 LONG textOffset;
92 LONG textWidth; /* horizontal text extent for pszText */
93 LONG visibleOrder; /* visible ordering, 0 is first visible item */
94 } TREEVIEW_ITEM;
95
96
97 typedef struct tagTREEVIEW_INFO
98 {
99 HWND hwnd;
100 HWND hwndNotify; /* Owner window to send notifications to */
101 DWORD dwStyle;
102 HTREEITEM root;
103 UINT uInternalStatus;
104 INT Timer;
105 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
106 INT cdmode; /* last custom draw setting */
107 UINT uScrollTime; /* max. time for scrolling in milliseconds */
108 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
109
110 UINT uItemHeight; /* item height */
111 BOOL bHeightSet;
112
113 LONG clientWidth; /* width of control window */
114 LONG clientHeight; /* height of control window */
115
116 LONG treeWidth; /* width of visible tree items */
117 LONG treeHeight; /* height of visible tree items */
118
119 UINT uIndent; /* indentation in pixels */
120 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
121 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
122 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
123
124 HTREEITEM firstVisible; /* handle to first visible item */
125 LONG maxVisibleOrder;
126 HTREEITEM dropItem; /* handle to item selected by drag cursor */
127 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
128 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
129 HIMAGELIST dragList; /* Bitmap of dragged item */
130 LONG scrollX;
131 COLORREF clrBk;
132 COLORREF clrText;
133 COLORREF clrLine;
134 COLORREF clrInsertMark;
135 HFONT hFont;
136 HFONT hDefaultFont;
137 HFONT hBoldFont;
138 HFONT hUnderlineFont;
139 HCURSOR hcurHand;
140 HWND hwndToolTip;
141
142 HWND hwndEdit;
143 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
144 BOOL bIgnoreEditKillFocus;
145 BOOL bLabelChanged;
146
147 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
148 HIMAGELIST himlNormal;
149 int normalImageHeight;
150 int normalImageWidth;
151 HIMAGELIST himlState;
152 int stateImageHeight;
153 int stateImageWidth;
154 HDPA items;
155
156 DWORD lastKeyPressTimestamp; /* Added */
157 WPARAM charCode; /* Added */
158 INT nSearchParamLength; /* Added */
159 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
160 } TREEVIEW_INFO;
161
162
163 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
164 #define KEY_DELAY 450
165
166 /* bitflags for infoPtr->uInternalStatus */
167
168 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
169 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
170 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
171 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
172 #define TV_RDRAG 0x10 /* dito Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(TREEVIEW_INFO *, TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(TREEVIEW_INFO *, LPPOINT);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 assert(infoPtr != NULL);
245
246 return DPA_GetPtrIndex(infoPtr->items, handle);
247 }
248
249 /* Checks if item has changed and needs to be redrawn */
250 static inline BOOL item_changed (TREEVIEW_ITEM *tiOld, TREEVIEW_ITEM *tiNew, LPTVITEMEXW tvChange)
251 {
252 /* Number of children has changed */
253 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
254 return TRUE;
255
256 /* Image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
258 tiNew->iImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Selected image has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
263 tiNew->iSelectedImage != I_IMAGECALLBACK)
264 return TRUE;
265
266 /* Text has changed and it's not a callback */
267 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
268 tiNew->pszText != LPSTR_TEXTCALLBACKW)
269 return TRUE;
270
271 /* Indent has changed */
272 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
273 return TRUE;
274
275 /* Item state has changed */
276 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
277 return TRUE;
278
279 return FALSE;
280 }
281
282 /***************************************************************************
283 * This method checks that handle is an item for this tree.
284 */
285 static BOOL
286 TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
287 {
288 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
289 {
290 TRACE("invalid item %p\n", handle);
291 return FALSE;
292 }
293 else
294 return TRUE;
295 }
296
297 static HFONT
298 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
299 {
300 LOGFONTW font;
301
302 GetObjectW(hOrigFont, sizeof(font), &font);
303 font.lfWeight = FW_BOLD;
304 return CreateFontIndirectW(&font);
305 }
306
307 static HFONT
308 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
309 {
310 LOGFONTW font;
311
312 GetObjectW(hOrigFont, sizeof(font), &font);
313 font.lfUnderline = TRUE;
314 return CreateFontIndirectW(&font);
315 }
316
317 static inline HFONT
318 TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
319 {
320 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
321 return infoPtr->hUnderlineFont;
322 if (item->state & TVIS_BOLD)
323 return infoPtr->hBoldFont;
324 return infoPtr->hFont;
325 }
326
327 /* for trace/debugging purposes only */
328 static const char *
329 TREEVIEW_ItemName(TREEVIEW_ITEM *item)
330 {
331 if (item == NULL) return "<null item>";
332 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
333 if (item->pszText == NULL) return "<null>";
334 return debugstr_w(item->pszText);
335 }
336
337 /* An item is not a child of itself. */
338 static BOOL
339 TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
340 {
341 do
342 {
343 child = child->parent;
344 if (child == parent) return TRUE;
345 } while (child != NULL);
346
347 return FALSE;
348 }
349
350
351 /* Tree Traversal *******************************************************/
352
353 /***************************************************************************
354 * This method returns the last expanded sibling or child child item
355 * of a tree node
356 */
357 static TREEVIEW_ITEM *
358 TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
359 {
360 if (!wineItem)
361 return NULL;
362
363 while (wineItem->lastChild)
364 {
365 if (wineItem->state & TVIS_EXPANDED)
366 wineItem = wineItem->lastChild;
367 else
368 break;
369 }
370
371 if (wineItem == infoPtr->root)
372 return NULL;
373
374 return wineItem;
375 }
376
377 /***************************************************************************
378 * This method returns the previous non-hidden item in the list not
379 * considering the tree hierarchy.
380 */
381 static TREEVIEW_ITEM *
382 TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
383 {
384 if (tvItem->prevSibling)
385 {
386 /* This item has a prevSibling, get the last item in the sibling's tree. */
387 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
388
389 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
390 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
391 else
392 return upItem;
393 }
394 else
395 {
396 /* this item does not have a prevSibling, get the parent */
397 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
398 }
399 }
400
401
402 /***************************************************************************
403 * This method returns the next physical item in the treeview not
404 * considering the tree hierarchy.
405 */
406 static TREEVIEW_ITEM *
407 TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
408 {
409 assert(tvItem != NULL);
410
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(wineItem != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return wineItem;
467
468 do
469 {
470 previousItem = wineItem;
471 wineItem = next_item(infoPtr, wineItem);
472
473 } while (--count && wineItem != NULL);
474
475
476 return wineItem ? wineItem : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static LRESULT
503 TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
504 {
505 TRACE("wParam=%d, lParam=%ld\n", wParam, lParam);
506 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
507 }
508
509 static BOOL
510 TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
511 {
512 NMHDR nmhdr;
513 HWND hwnd = infoPtr->hwnd;
514
515 TRACE("%d\n", code);
516 nmhdr.hwndFrom = hwnd;
517 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
518 nmhdr.code = get_notifycode(infoPtr, code);
519
520 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
521 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 HWND hwnd = infoPtr->hwnd;
562 NMTREEVIEWW nmhdr;
563 BOOL ret;
564
565 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
566 code, action, oldItem, newItem);
567
568 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
569
570 nmhdr.hdr.hwndFrom = hwnd;
571 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
572 nmhdr.hdr.code = get_notifycode(infoPtr, code);
573 nmhdr.action = action;
574
575 if (oldItem)
576 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
577
578 if (newItem)
579 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
580
581 nmhdr.ptDrag.x = 0;
582 nmhdr.ptDrag.y = 0;
583
584 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
585 (WPARAM)nmhdr.hdr.idFrom,
586 (LPARAM)&nmhdr);
587 if (!infoPtr->bNtfUnicode)
588 {
589 Free(nmhdr.itemOld.pszText);
590 Free(nmhdr.itemNew.pszText);
591 }
592 return ret;
593 }
594
595 static BOOL
596 TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
597 HTREEITEM dragItem, POINT pt)
598 {
599 HWND hwnd = infoPtr->hwnd;
600 NMTREEVIEWW nmhdr;
601
602 TRACE("code:%d dragitem:%p\n", code, dragItem);
603
604 nmhdr.hdr.hwndFrom = hwnd;
605 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
606 nmhdr.hdr.code = get_notifycode(infoPtr, code);
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
617 (WPARAM)nmhdr.hdr.idFrom,
618 (LPARAM)&nmhdr);
619 }
620
621
622 static BOOL
623 TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
624 HDC hdc, RECT rc)
625 {
626 HWND hwnd = infoPtr->hwnd;
627 NMTVCUSTOMDRAW nmcdhdr;
628 LPNMCUSTOMDRAW nmcd;
629
630 TRACE("drawstage:%lx hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->hdr.hwndFrom = hwnd;
634 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
635 nmcd->hdr.code = NM_CUSTOMDRAW;
636 nmcd->dwDrawStage = dwDrawStage;
637 nmcd->hdc = hdc;
638 nmcd->rc = rc;
639 nmcd->dwItemSpec = 0;
640 nmcd->uItemState = 0;
641 nmcd->lItemlParam = 0;
642 nmcdhdr.clrText = infoPtr->clrText;
643 nmcdhdr.clrTextBk = infoPtr->clrBk;
644 nmcdhdr.iLevel = 0;
645
646 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
647 (WPARAM)nmcd->hdr.idFrom,
648 (LPARAM)&nmcdhdr);
649 }
650
651
652
653 /* FIXME: need to find out when the flags in uItemState need to be set */
654
655 static BOOL
656 TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
657 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
658 NMTVCUSTOMDRAW *nmcdhdr)
659 {
660 HWND hwnd = infoPtr->hwnd;
661 LPNMCUSTOMDRAW nmcd;
662 DWORD dwDrawStage;
663 DWORD_PTR dwItemSpec;
664 UINT uItemState;
665 INT retval;
666
667 dwDrawStage = CDDS_ITEM | uItemDrawState;
668 dwItemSpec = (DWORD_PTR)wineItem;
669 uItemState = 0;
670 if (wineItem->state & TVIS_SELECTED)
671 uItemState |= CDIS_SELECTED;
672 if (wineItem == infoPtr->selectedItem)
673 uItemState |= CDIS_FOCUS;
674 if (wineItem == infoPtr->hotItem)
675 uItemState |= CDIS_HOT;
676
677 nmcd = &nmcdhdr->nmcd;
678 nmcd->hdr.hwndFrom = hwnd;
679 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
680 nmcd->hdr.code = NM_CUSTOMDRAW;
681 nmcd->dwDrawStage = dwDrawStage;
682 nmcd->hdc = hdc;
683 nmcd->rc = wineItem->rect;
684 nmcd->dwItemSpec = dwItemSpec;
685 nmcd->uItemState = uItemState;
686 nmcd->lItemlParam = wineItem->lParam;
687 nmcdhdr->iLevel = wineItem->iLevel;
688
689 TRACE("drawstage:%lx hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
690 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
691 nmcd->uItemState, nmcd->lItemlParam);
692
693 retval = TREEVIEW_SendRealNotify(infoPtr,
694 (WPARAM)nmcd->hdr.idFrom,
695 (LPARAM)nmcdhdr);
696
697 return (BOOL)retval;
698 }
699
700 static BOOL
701 TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
702 {
703 HWND hwnd = infoPtr->hwnd;
704 NMTVDISPINFOW tvdi;
705 BOOL ret;
706
707 tvdi.hdr.hwndFrom = hwnd;
708 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
709 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
710
711 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
712 &tvdi.item, editItem);
713
714 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
715
716 if (!infoPtr->bNtfUnicode)
717 Free(tvdi.item.pszText);
718
719 return ret;
720 }
721
722 static void
723 TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
724 UINT mask)
725 {
726 NMTVDISPINFOW callback;
727 HWND hwnd = infoPtr->hwnd;
728
729 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
730 mask &= wineItem->callbackMask;
731
732 if (mask == 0) return;
733
734 callback.hdr.hwndFrom = hwnd;
735 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
736 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
737
738 /* 'state' always contains valid value, as well as 'lParam'.
739 * All other parameters are uninitialized.
740 */
741 callback.item.pszText = wineItem->pszText;
742 callback.item.cchTextMax = wineItem->cchTextMax;
743 callback.item.mask = mask;
744 callback.item.hItem = wineItem;
745 callback.item.state = wineItem->state;
746 callback.item.lParam = wineItem->lParam;
747
748 /* If text is changed we need to recalculate textWidth */
749 if (mask & TVIF_TEXT)
750 wineItem->textWidth = 0;
751
752 TREEVIEW_SendRealNotify(infoPtr,
753 (WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
754
755 /* It may have changed due to a call to SetItem. */
756 mask &= wineItem->callbackMask;
757
758 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
759 {
760 /* Instead of copying text into our buffer user specified its own */
761 if (!infoPtr->bNtfUnicode) {
762 LPWSTR newText;
763 int buflen;
764 int len = MultiByteToWideChar( CP_ACP, 0,
765 (LPSTR)callback.item.pszText, -1,
766 NULL, 0);
767 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
768 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
769
770 TRACE("returned str %s, len=%d, buflen=%d\n",
771 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
772
773 if (newText)
774 {
775 wineItem->pszText = newText;
776 MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 wineItem->pszText, buflen/sizeof(WCHAR));
779 wineItem->cchTextMax = buflen/sizeof(WCHAR);
780 }
781 /* If ReAlloc fails we have nothing to do, but keep original text */
782 }
783 else {
784 int len = max(lstrlenW(callback.item.pszText) + 1,
785 TEXT_CALLBACK_SIZE);
786 LPWSTR newText = ReAlloc(wineItem->pszText, len);
787
788 TRACE("returned wstr %s, len=%d\n",
789 debugstr_w(callback.item.pszText), len);
790
791 if (newText)
792 {
793 wineItem->pszText = newText;
794 strcpyW(wineItem->pszText, callback.item.pszText);
795 wineItem->cchTextMax = len;
796 }
797 /* If ReAlloc fails we have nothing to do, but keep original text */
798 }
799 }
800 else if (mask & TVIF_TEXT) {
801 /* User put text into our buffer, that is ok unless A string */
802 if (!infoPtr->bNtfUnicode) {
803 LPWSTR newText;
804 LPWSTR oldText = NULL;
805 int buflen;
806 int len = MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 NULL, 0);
809 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
810 newText = (LPWSTR)Alloc(buflen);
811
812 TRACE("same buffer str %s, len=%d, buflen=%d\n",
813 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
814
815 if (newText)
816 {
817 oldText = wineItem->pszText;
818 wineItem->pszText = newText;
819 MultiByteToWideChar( CP_ACP, 0,
820 (LPSTR)callback.item.pszText, -1,
821 wineItem->pszText, buflen/sizeof(WCHAR));
822 wineItem->cchTextMax = buflen/sizeof(WCHAR);
823 if (oldText)
824 Free(oldText);
825 }
826 }
827 }
828
829 if (mask & TVIF_IMAGE)
830 wineItem->iImage = callback.item.iImage;
831
832 if (mask & TVIF_SELECTEDIMAGE)
833 wineItem->iSelectedImage = callback.item.iSelectedImage;
834
835 if (mask & TVIF_CHILDREN)
836 wineItem->cChildren = callback.item.cChildren;
837
838 /* These members are now permanently set. */
839 if (callback.item.mask & TVIF_DI_SETITEM)
840 wineItem->callbackMask &= ~callback.item.mask;
841 }
842
843 /***************************************************************************
844 * This function uses cChildren field to decide whether the item has
845 * children or not.
846 * Note: if this returns TRUE, the child items may not actually exist,
847 * they could be virtual.
848 *
849 * Just use wineItem->firstChild to check for physical children.
850 */
851 static BOOL
852 TREEVIEW_HasChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
853 {
854 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
855
856 return wineItem->cChildren > 0;
857 }
858
859
860 /* Item Position ********************************************************/
861
862 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
863 static VOID
864 TREEVIEW_ComputeItemInternalMetrics(TREEVIEW_INFO *infoPtr,
865 TREEVIEW_ITEM *item)
866 {
867 /* Same effect, different optimisation. */
868 #if 0
869 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
870 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
871 #else
872 BOOL lar = ((infoPtr->dwStyle
873 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
874 > TVS_LINESATROOT);
875 #endif
876
877 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
878 - infoPtr->scrollX;
879 item->stateOffset = item->linesOffset + infoPtr->uIndent;
880 item->imageOffset = item->stateOffset
881 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
882 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
883 }
884
885 static VOID
886 TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
887 {
888 HDC hdc;
889 HFONT hOldFont=0;
890 SIZE sz;
891
892 /* DRAW's OM docker creates items like this */
893 if (item->pszText == NULL)
894 {
895 item->textWidth = 0;
896 return;
897 }
898
899 if (hDC != 0)
900 {
901 hdc = hDC;
902 }
903 else
904 {
905 hdc = GetDC(infoPtr->hwnd);
906 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
907 }
908
909 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
910 item->textWidth = sz.cx;
911
912 if (hDC == 0)
913 {
914 SelectObject(hdc, hOldFont);
915 ReleaseDC(0, hdc);
916 }
917 }
918
919 static VOID
920 TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
921 {
922 item->rect.top = infoPtr->uItemHeight *
923 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
924
925 item->rect.bottom = item->rect.top
926 + infoPtr->uItemHeight * item->iIntegral - 1;
927
928 item->rect.left = 0;
929 item->rect.right = infoPtr->clientWidth;
930 }
931
932 /* We know that only items after start need their order updated. */
933 static void
934 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
935 {
936 TREEVIEW_ITEM *item;
937 int order;
938
939 if (!start)
940 {
941 start = infoPtr->root->firstChild;
942 order = 0;
943 }
944 else
945 order = start->visibleOrder;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 item->visibleOrder = order;
951 order += item->iIntegral;
952 }
953
954 infoPtr->maxVisibleOrder = order;
955
956 for (item = start; item != NULL;
957 item = TREEVIEW_GetNextListItem(infoPtr, item))
958 {
959 TREEVIEW_ComputeItemRect(infoPtr, item);
960 }
961 }
962
963
964 /* Update metrics of all items in selected subtree.
965 * root must be expanded
966 */
967 static VOID
968 TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
969 {
970 TREEVIEW_ITEM *sibling;
971 HDC hdc;
972 HFONT hOldFont;
973
974 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
975 return;
976
977 root->state &= ~TVIS_EXPANDED;
978 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
979 root->state |= TVIS_EXPANDED;
980
981 hdc = GetDC(infoPtr->hwnd);
982 hOldFont = SelectObject(hdc, infoPtr->hFont);
983
984 for (; root != sibling;
985 root = TREEVIEW_GetNextListItem(infoPtr, root))
986 {
987 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
988
989 if (root->callbackMask & TVIF_TEXT)
990 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
991
992 if (root->textWidth == 0)
993 {
994 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
995 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
996 }
997 }
998
999 SelectObject(hdc, hOldFont);
1000 ReleaseDC(infoPtr->hwnd, hdc);
1001 }
1002
1003 /* Item Allocation **********************************************************/
1004
1005 static TREEVIEW_ITEM *
1006 TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 newItem->iImage = -1;
1014 newItem->iSelectedImage = -1;
1015
1016 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1017 {
1018 Free(newItem);
1019 return NULL;
1020 }
1021
1022 return newItem;
1023 }
1024
1025 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1026 * free item->pszText. */
1027 static void
1028 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1029 {
1030 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1031 Free(item);
1032 if (infoPtr->selectedItem == item)
1033 infoPtr->selectedItem = NULL;
1034 if (infoPtr->hotItem == item)
1035 infoPtr->hotItem = NULL;
1036 if (infoPtr->focusedItem == item)
1037 infoPtr->focusedItem = NULL;
1038 if (infoPtr->firstVisible == item)
1039 infoPtr->firstVisible = NULL;
1040 if (infoPtr->dropItem == item)
1041 infoPtr->dropItem = NULL;
1042 if (infoPtr->insertMarkItem == item)
1043 infoPtr->insertMarkItem = NULL;
1044 }
1045
1046
1047 /* Item Insertion *******************************************************/
1048
1049 /***************************************************************************
1050 * This method inserts newItem before sibling as a child of parent.
1051 * sibling can be NULL, but only if parent has no children.
1052 */
1053 static void
1054 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1055 TREEVIEW_ITEM *parent)
1056 {
1057 assert(newItem != NULL);
1058 assert(parent != NULL);
1059
1060 if (sibling != NULL)
1061 {
1062 assert(sibling->parent == parent);
1063
1064 if (sibling->prevSibling != NULL)
1065 sibling->prevSibling->nextSibling = newItem;
1066
1067 newItem->prevSibling = sibling->prevSibling;
1068 sibling->prevSibling = newItem;
1069 }
1070 else
1071 newItem->prevSibling = NULL;
1072
1073 newItem->nextSibling = sibling;
1074
1075 if (parent->firstChild == sibling)
1076 parent->firstChild = newItem;
1077
1078 if (parent->lastChild == NULL)
1079 parent->lastChild = newItem;
1080 }
1081
1082 /***************************************************************************
1083 * This method inserts newItem after sibling as a child of parent.
1084 * sibling can be NULL, but only if parent has no children.
1085 */
1086 static void
1087 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1088 TREEVIEW_ITEM *parent)
1089 {
1090 assert(newItem != NULL);
1091 assert(parent != NULL);
1092
1093 if (sibling != NULL)
1094 {
1095 assert(sibling->parent == parent);
1096
1097 if (sibling->nextSibling != NULL)
1098 sibling->nextSibling->prevSibling = newItem;
1099
1100 newItem->nextSibling = sibling->nextSibling;
1101 sibling->nextSibling = newItem;
1102 }
1103 else
1104 newItem->nextSibling = NULL;
1105
1106 newItem->prevSibling = sibling;
1107
1108 if (parent->lastChild == sibling)
1109 parent->lastChild = newItem;
1110
1111 if (parent->firstChild == NULL)
1112 parent->firstChild = newItem;
1113 }
1114
1115 static BOOL
1116 TREEVIEW_DoSetItemT(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1117 const TVITEMEXW *tvItem, BOOL isW)
1118 {
1119 UINT callbackClear = 0;
1120 UINT callbackSet = 0;
1121
1122 TRACE("item %p\n", wineItem);
1123 /* Do this first in case it fails. */
1124 if (tvItem->mask & TVIF_TEXT)
1125 {
1126 wineItem->textWidth = 0; /* force width recalculation */
1127 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1128 {
1129 int len;
1130 LPWSTR newText;
1131 if (isW)
1132 len = lstrlenW(tvItem->pszText) + 1;
1133 else
1134 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1135
1136 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 wineItem->pszText = newText;
1143 wineItem->cchTextMax = len;
1144 if (isW)
1145 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1146 else
1147 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1148 wineItem->pszText, len);
1149
1150 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1151 }
1152 else
1153 {
1154 callbackSet |= TVIF_TEXT;
1155
1156 wineItem->pszText = ReAlloc(wineItem->pszText,
1157 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1158 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1159 TRACE("setting callback, item %p\n", wineItem);
1160 }
1161 }
1162
1163 if (tvItem->mask & TVIF_CHILDREN)
1164 {
1165 wineItem->cChildren = tvItem->cChildren;
1166
1167 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1168 callbackSet |= TVIF_CHILDREN;
1169 else
1170 callbackClear |= TVIF_CHILDREN;
1171 }
1172
1173 if (tvItem->mask & TVIF_IMAGE)
1174 {
1175 wineItem->iImage = tvItem->iImage;
1176
1177 if (wineItem->iImage == I_IMAGECALLBACK)
1178 callbackSet |= TVIF_IMAGE;
1179 else
1180 callbackClear |= TVIF_IMAGE;
1181 }
1182
1183 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1184 {
1185 wineItem->iSelectedImage = tvItem->iSelectedImage;
1186
1187 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1188 callbackSet |= TVIF_SELECTEDIMAGE;
1189 else
1190 callbackClear |= TVIF_SELECTEDIMAGE;
1191 }
1192
1193 if (tvItem->mask & TVIF_PARAM)
1194 wineItem->lParam = tvItem->lParam;
1195
1196 /* If the application sets TVIF_INTEGRAL without
1197 * supplying a TVITEMEX structure, it's toast. */
1198 if (tvItem->mask & TVIF_INTEGRAL)
1199 wineItem->iIntegral = tvItem->iIntegral;
1200
1201 if (tvItem->mask & TVIF_STATE)
1202 {
1203 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1204 tvItem->stateMask);
1205 wineItem->state &= ~tvItem->stateMask;
1206 wineItem->state |= (tvItem->state & tvItem->stateMask);
1207 }
1208
1209 wineItem->callbackMask |= callbackSet;
1210 wineItem->callbackMask &= ~callbackClear;
1211
1212 return TRUE;
1213 }
1214
1215 /* Note that the new item is pre-zeroed. */
1216 static LRESULT
1217 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1218 {
1219 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1220 HTREEITEM insertAfter;
1221 TREEVIEW_ITEM *newItem, *parentItem;
1222 BOOL bTextUpdated = FALSE;
1223
1224 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1225 {
1226 parentItem = infoPtr->root;
1227 }
1228 else
1229 {
1230 parentItem = ptdi->hParent;
1231
1232 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1233 {
1234 WARN("invalid parent %p\n", parentItem);
1235 return (LRESULT)(HTREEITEM)NULL;
1236 }
1237 }
1238
1239 insertAfter = ptdi->hInsertAfter;
1240
1241 /* Validate this now for convenience. */
1242 switch ((DWORD_PTR)insertAfter)
1243 {
1244 case (DWORD_PTR)TVI_FIRST:
1245 case (DWORD_PTR)TVI_LAST:
1246 case (DWORD_PTR)TVI_SORT:
1247 break;
1248
1249 default:
1250 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1251 insertAfter->parent != parentItem)
1252 {
1253 WARN("invalid insert after %p\n", insertAfter);
1254 insertAfter = TVI_LAST;
1255 }
1256 }
1257
1258 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1259 (tvItem->mask & TVIF_TEXT)
1260 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1261 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1262 : "<no label>");
1263
1264 newItem = TREEVIEW_AllocateItem(infoPtr);
1265 if (newItem == NULL)
1266 return (LRESULT)(HTREEITEM)NULL;
1267
1268 newItem->parent = parentItem;
1269 newItem->iIntegral = 1;
1270
1271 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1272 return (LRESULT)(HTREEITEM)NULL;
1273
1274 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1275
1276 infoPtr->uNumItems++;
1277
1278 switch ((DWORD_PTR)insertAfter)
1279 {
1280 case (DWORD_PTR)TVI_FIRST:
1281 {
1282 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1283 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1284 if (infoPtr->firstVisible == originalFirst)
1285 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1286 }
1287 break;
1288
1289 case (DWORD_PTR)TVI_LAST:
1290 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1291 break;
1292
1293 /* hInsertAfter names a specific item we want to insert after */
1294 default:
1295 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1296 break;
1297
1298 case (DWORD_PTR)TVI_SORT:
1299 {
1300 TREEVIEW_ITEM *aChild;
1301 TREEVIEW_ITEM *previousChild = NULL;
1302 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1303 BOOL bItemInserted = FALSE;
1304
1305 aChild = parentItem->firstChild;
1306
1307 bTextUpdated = TRUE;
1308 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1309
1310 /* Iterate the parent children to see where we fit in */
1311 while (aChild != NULL)
1312 {
1313 INT comp;
1314
1315 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1316 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1317
1318 if (comp < 0) /* we are smaller than the current one */
1319 {
1320 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1321 if (infoPtr->firstVisible == originalFirst &&
1322 aChild == originalFirst)
1323 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1324 bItemInserted = TRUE;
1325 break;
1326 }
1327 else if (comp > 0) /* we are bigger than the current one */
1328 {
1329 previousChild = aChild;
1330
1331 /* This will help us to exit if there is no more sibling */
1332 aChild = (aChild->nextSibling == 0)
1333 ? NULL
1334 : aChild->nextSibling;
1335
1336 /* Look at the next item */
1337 continue;
1338 }
1339 else if (comp == 0)
1340 {
1341 /*
1342 * An item with this name is already existing, therefore,
1343 * we add after the one we found
1344 */
1345 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1346 bItemInserted = TRUE;
1347 break;
1348 }
1349 }
1350
1351 /*
1352 * we reach the end of the child list and the item has not
1353 * yet been inserted, therefore, insert it after the last child.
1354 */
1355 if ((!bItemInserted) && (aChild == NULL))
1356 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1357
1358 break;
1359 }
1360 }
1361
1362
1363 TRACE("new item %p; parent %p, mask %x\n", newItem,
1364 newItem->parent, tvItem->mask);
1365
1366 newItem->iLevel = newItem->parent->iLevel + 1;
1367
1368 if (newItem->parent->cChildren == 0)
1369 newItem->parent->cChildren = 1;
1370
1371 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1372 {
1373 if (STATEIMAGEINDEX(newItem->state) == 0)
1374 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1375 }
1376
1377 if (infoPtr->firstVisible == NULL)
1378 infoPtr->firstVisible = newItem;
1379
1380 TREEVIEW_VerifyTree(infoPtr);
1381
1382 if (parentItem == infoPtr->root ||
1383 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1384 {
1385 TREEVIEW_ITEM *item;
1386 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1387
1388 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1389 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1390
1391 if (!bTextUpdated)
1392 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1393
1394 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1395 TREEVIEW_UpdateScrollBars(infoPtr);
1396 /*
1397 * if the item was inserted in a visible part of the tree,
1398 * invalidate it, as well as those after it
1399 */
1400 for (item = newItem;
1401 item != NULL;
1402 item = TREEVIEW_GetNextListItem(infoPtr, item))
1403 TREEVIEW_Invalidate(infoPtr, item);
1404 }
1405 else
1406 {
1407 newItem->visibleOrder = -1;
1408
1409 /* refresh treeview if newItem is the first item inserted under parentItem */
1410 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1411 {
1412 /* parent got '+' - update it */
1413 TREEVIEW_Invalidate(infoPtr, parentItem);
1414 }
1415 }
1416
1417 return (LRESULT)newItem;
1418 }
1419
1420 /* Item Deletion ************************************************************/
1421 static void
1422 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1423
1424 static void
1425 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
1426 {
1427 TREEVIEW_ITEM *kill = parentItem->firstChild;
1428
1429 while (kill != NULL)
1430 {
1431 TREEVIEW_ITEM *next = kill->nextSibling;
1432
1433 TREEVIEW_RemoveItem(infoPtr, kill);
1434
1435 kill = next;
1436 }
1437
1438 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1439 assert(parentItem->firstChild == NULL);
1440 assert(parentItem->lastChild == NULL);
1441 }
1442
1443 static void
1444 TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
1445 {
1446 TREEVIEW_ITEM *parentItem = item->parent;
1447
1448 assert(item != NULL);
1449 assert(item->parent != NULL); /* i.e. it must not be the root */
1450
1451 if (parentItem->firstChild == item)
1452 parentItem->firstChild = item->nextSibling;
1453
1454 if (parentItem->lastChild == item)
1455 parentItem->lastChild = item->prevSibling;
1456
1457 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1458 && parentItem->cChildren > 0)
1459 parentItem->cChildren = 0;
1460
1461 if (item->prevSibling)
1462 item->prevSibling->nextSibling = item->nextSibling;
1463
1464 if (item->nextSibling)
1465 item->nextSibling->prevSibling = item->prevSibling;
1466 }
1467
1468 static void
1469 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1470 {
1471 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1472
1473 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1474 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1475
1476 if (wineItem->firstChild)
1477 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1478
1479 TREEVIEW_UnlinkItem(wineItem);
1480
1481 infoPtr->uNumItems--;
1482
1483 if (wineItem->pszText && wineItem->pszText != LPSTR_TEXTCALLBACKW)
1484 Free(wineItem->pszText);
1485
1486 TREEVIEW_FreeItem(infoPtr, wineItem);
1487 }
1488
1489
1490 /* Empty out the tree. */
1491 static void
1492 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1493 {
1494 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1495
1496 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1497 }
1498
1499 static LRESULT
1500 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1501 {
1502 TREEVIEW_ITEM *newSelection = NULL;
1503 TREEVIEW_ITEM *newFirstVisible = NULL;
1504 TREEVIEW_ITEM *parent, *prev = NULL;
1505 BOOL visible = FALSE;
1506
1507 if (wineItem == TVI_ROOT)
1508 {
1509 TRACE("TVI_ROOT\n");
1510 parent = infoPtr->root;
1511 newSelection = NULL;
1512 visible = TRUE;
1513 TREEVIEW_RemoveTree(infoPtr);
1514 }
1515 else
1516 {
1517 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1518 return FALSE;
1519
1520 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1521 parent = wineItem->parent;
1522
1523 if (ISVISIBLE(wineItem))
1524 {
1525 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1526 visible = TRUE;
1527 }
1528
1529 if (infoPtr->selectedItem != NULL
1530 && (wineItem == infoPtr->selectedItem
1531 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1532 {
1533 if (wineItem->nextSibling)
1534 newSelection = wineItem->nextSibling;
1535 else if (wineItem->parent != infoPtr->root)
1536 newSelection = wineItem->parent;
1537 else
1538 newSelection = wineItem->prevSibling;
1539 TRACE("newSelection = %p\n", newSelection);
1540 }
1541
1542 if (infoPtr->firstVisible == wineItem)
1543 {
1544 if (wineItem->nextSibling)
1545 newFirstVisible = wineItem->nextSibling;
1546 else if (wineItem->prevSibling)
1547 newFirstVisible = wineItem->prevSibling;
1548 else if (wineItem->parent != infoPtr->root)
1549 newFirstVisible = wineItem->parent;
1550 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1551 }
1552 else
1553 newFirstVisible = infoPtr->firstVisible;
1554
1555 TREEVIEW_RemoveItem(infoPtr, wineItem);
1556 }
1557
1558 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1559 if (!infoPtr->selectedItem && newSelection)
1560 {
1561 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1562 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1563 }
1564
1565 /* Validate insertMark dropItem.
1566 * hotItem ??? - used for comparison only.
1567 */
1568 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1569 infoPtr->insertMarkItem = 0;
1570
1571 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1572 infoPtr->dropItem = 0;
1573
1574 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1575 newFirstVisible = infoPtr->root->firstChild;
1576
1577 TREEVIEW_VerifyTree(infoPtr);
1578
1579
1580 if (visible)
1581 {
1582 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1583 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1584 TREEVIEW_UpdateScrollBars(infoPtr);
1585 TREEVIEW_Invalidate(infoPtr, NULL);
1586 }
1587 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1588 {
1589 /* parent lost '+/-' - update it */
1590 TREEVIEW_Invalidate(infoPtr, parent);
1591 }
1592
1593 return TRUE;
1594 }
1595
1596
1597 /* Get/Set Messages *********************************************************/
1598 static LRESULT
1599 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1600 {
1601 if(wParam)
1602 infoPtr->bRedraw = TRUE;
1603 else
1604 infoPtr->bRedraw = FALSE;
1605
1606 return 0;
1607 }
1608
1609 static LRESULT
1610 TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
1611 {
1612 TRACE("\n");
1613 return infoPtr->uIndent;
1614 }
1615
1616 static LRESULT
1617 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1618 {
1619 TRACE("\n");
1620
1621 if (newIndent < MINIMUM_INDENT)
1622 newIndent = MINIMUM_INDENT;
1623
1624 if (infoPtr->uIndent != newIndent)
1625 {
1626 infoPtr->uIndent = newIndent;
1627 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1628 TREEVIEW_UpdateScrollBars(infoPtr);
1629 TREEVIEW_Invalidate(infoPtr, NULL);
1630 }
1631
1632 return 0;
1633 }
1634
1635
1636 static LRESULT
1637 TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
1638 {
1639 TRACE("\n");
1640 return (LRESULT)infoPtr->hwndToolTip;
1641 }
1642
1643 static LRESULT
1644 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1645 {
1646 HWND prevToolTip;
1647
1648 TRACE("\n");
1649 prevToolTip = infoPtr->hwndToolTip;
1650 infoPtr->hwndToolTip = hwndTT;
1651
1652 return (LRESULT)prevToolTip;
1653 }
1654
1655 static LRESULT
1656 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1657 {
1658 BOOL rc = infoPtr->bNtfUnicode;
1659 infoPtr->bNtfUnicode = fUnicode;
1660 return rc;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_GetUnicodeFormat(TREEVIEW_INFO *infoPtr)
1665 {
1666 return infoPtr->bNtfUnicode;
1667 }
1668
1669 static LRESULT
1670 TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
1671 {
1672 return infoPtr->uScrollTime;
1673 }
1674
1675 static LRESULT
1676 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1677 {
1678 UINT uOldScrollTime = infoPtr->uScrollTime;
1679
1680 infoPtr->uScrollTime = min(uScrollTime, 100);
1681
1682 return uOldScrollTime;
1683 }
1684
1685
1686 static LRESULT
1687 TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
1688 {
1689 TRACE("\n");
1690
1691 switch (wParam)
1692 {
1693 case (WPARAM)TVSIL_NORMAL:
1694 return (LRESULT)infoPtr->himlNormal;
1695
1696 case (WPARAM)TVSIL_STATE:
1697 return (LRESULT)infoPtr->himlState;
1698
1699 default:
1700 return 0;
1701 }
1702 }
1703
1704 #define TVHEIGHT_MIN 16
1705 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1706
1707 /* Compute the natural height for items. */
1708 static UINT
1709 TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
1710 {
1711 TEXTMETRICW tm;
1712 HDC hdc = GetDC(0);
1713 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1714 UINT height;
1715
1716 /* Height is the maximum of:
1717 * 16 (a hack because our fonts are tiny), and
1718 * The text height + border & margin, and
1719 * The size of the normal image list
1720 */
1721 GetTextMetricsW(hdc, &tm);
1722 SelectObject(hdc, hOldFont);
1723 ReleaseDC(0, hdc);
1724
1725 height = TVHEIGHT_MIN;
1726 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1727 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1728 if (height < infoPtr->normalImageHeight)
1729 height = infoPtr->normalImageHeight;
1730 return height;
1731 }
1732
1733 static LRESULT
1734 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1735 {
1736 HIMAGELIST himlOld = 0;
1737 int oldWidth = infoPtr->normalImageWidth;
1738 int oldHeight = infoPtr->normalImageHeight;
1739
1740
1741 TRACE("%x,%p\n", wParam, himlNew);
1742
1743 switch (wParam)
1744 {
1745 case (WPARAM)TVSIL_NORMAL:
1746 himlOld = infoPtr->himlNormal;
1747 infoPtr->himlNormal = himlNew;
1748
1749 if (himlNew != NULL)
1750 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1751 &infoPtr->normalImageHeight);
1752 else
1753 {
1754 infoPtr->normalImageWidth = 0;
1755 infoPtr->normalImageHeight = 0;
1756 }
1757
1758 break;
1759
1760 case (WPARAM)TVSIL_STATE:
1761 himlOld = infoPtr->himlState;
1762 infoPtr->himlState = himlNew;
1763
1764 if (himlNew != NULL)
1765 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1766 &infoPtr->stateImageHeight);
1767 else
1768 {
1769 infoPtr->stateImageWidth = 0;
1770 infoPtr->stateImageHeight = 0;
1771 }
1772
1773 break;
1774 }
1775
1776 if (oldWidth != infoPtr->normalImageWidth ||
1777 oldHeight != infoPtr->normalImageHeight)
1778 {
1779 BOOL bRecalcVisible = FALSE;
1780
1781 if (oldHeight != infoPtr->normalImageHeight &&
1782 !infoPtr->bHeightSet)
1783 {
1784 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1785 bRecalcVisible = TRUE;
1786 }
1787
1788 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1789 infoPtr->normalImageWidth != infoPtr->uIndent)
1790 {
1791 infoPtr->uIndent = infoPtr->normalImageWidth;
1792 bRecalcVisible = TRUE;
1793 }
1794
1795 if (bRecalcVisible)
1796 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1797
1798 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1799 TREEVIEW_UpdateScrollBars(infoPtr);
1800 }
1801
1802 TREEVIEW_Invalidate(infoPtr, NULL);
1803
1804 return (LRESULT)himlOld;
1805 }
1806
1807 static LRESULT
1808 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1809 {
1810 INT prevHeight = infoPtr->uItemHeight;
1811
1812 TRACE("%d\n", newHeight);
1813 if (newHeight == -1)
1814 {
1815 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1816 infoPtr->bHeightSet = FALSE;
1817 }
1818 else
1819 {
1820 infoPtr->uItemHeight = newHeight;
1821 infoPtr->bHeightSet = TRUE;
1822 }
1823
1824 /* Round down, unless we support odd ("non even") heights. */
1825 if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
1826 infoPtr->uItemHeight &= ~1;
1827
1828 if (infoPtr->uItemHeight != prevHeight)
1829 {
1830 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1831 TREEVIEW_UpdateScrollBars(infoPtr);
1832 TREEVIEW_Invalidate(infoPtr, NULL);
1833 }
1834
1835 return prevHeight;
1836 }
1837
1838 static LRESULT
1839 TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
1840 {
1841 TRACE("\n");
1842 return infoPtr->uItemHeight;
1843 }
1844
1845
1846 static LRESULT
1847 TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
1848 {
1849 TRACE("%p\n", infoPtr->hFont);
1850 return (LRESULT)infoPtr->hFont;
1851 }
1852
1853
1854 static INT CALLBACK
1855 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1856 {
1857 (void)unused;
1858
1859 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1860
1861 return 1;
1862 }
1863
1864 static LRESULT
1865 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1866 {
1867 UINT uHeight = infoPtr->uItemHeight;
1868
1869 TRACE("%p %i\n", hFont, bRedraw);
1870
1871 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1872
1873 DeleteObject(infoPtr->hBoldFont);
1874 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1875 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1876
1877 if (!infoPtr->bHeightSet)
1878 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1879
1880 if (uHeight != infoPtr->uItemHeight)
1881 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1882
1883 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1884
1885 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1886 TREEVIEW_UpdateScrollBars(infoPtr);
1887
1888 if (bRedraw)
1889 TREEVIEW_Invalidate(infoPtr, NULL);
1890
1891 return 0;
1892 }
1893
1894
1895 static LRESULT
1896 TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
1897 {
1898 TRACE("\n");
1899 return (LRESULT)infoPtr->clrLine;
1900 }
1901
1902 static LRESULT
1903 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1904 {
1905 COLORREF prevColor = infoPtr->clrLine;
1906
1907 TRACE("\n");
1908 infoPtr->clrLine = color;
1909 return (LRESULT)prevColor;
1910 }
1911
1912
1913 static LRESULT
1914 TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
1915 {
1916 TRACE("\n");
1917 return (LRESULT)infoPtr->clrText;
1918 }
1919
1920 static LRESULT
1921 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1922 {
1923 COLORREF prevColor = infoPtr->clrText;
1924
1925 TRACE("\n");
1926 infoPtr->clrText = color;
1927
1928 if (infoPtr->clrText != prevColor)
1929 TREEVIEW_Invalidate(infoPtr, NULL);
1930
1931 return (LRESULT)prevColor;
1932 }
1933
1934
1935 static LRESULT
1936 TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
1937 {
1938 TRACE("\n");
1939 return (LRESULT)infoPtr->clrBk;
1940 }
1941
1942 static LRESULT
1943 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1944 {
1945 COLORREF prevColor = infoPtr->clrBk;
1946
1947 TRACE("\n");
1948 infoPtr->clrBk = newColor;
1949
1950 if (newColor != prevColor)
1951 TREEVIEW_Invalidate(infoPtr, NULL);
1952
1953 return (LRESULT)prevColor;
1954 }
1955
1956
1957 static LRESULT
1958 TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
1959 {
1960 TRACE("\n");
1961 return (LRESULT)infoPtr->clrInsertMark;
1962 }
1963
1964 static LRESULT
1965 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1966 {
1967 COLORREF prevColor = infoPtr->clrInsertMark;
1968
1969 TRACE("%lx\n", color);
1970 infoPtr->clrInsertMark = color;
1971
1972 return (LRESULT)prevColor;
1973 }
1974
1975
1976 static LRESULT
1977 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1978 {
1979 TRACE("%d %p\n", wParam, item);
1980
1981 if (!TREEVIEW_ValidItem(infoPtr, item))
1982 return 0;
1983
1984 infoPtr->insertBeforeorAfter = wParam;
1985 infoPtr->insertMarkItem = item;
1986
1987 TREEVIEW_Invalidate(infoPtr, NULL);
1988
1989 return 1;
1990 }
1991
1992
1993 /************************************************************************
1994 * Some serious braindamage here. lParam is a pointer to both the
1995 * input HTREEITEM and the output RECT.
1996 */
1997 static LRESULT
1998 TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1999 {
2000 TREEVIEW_ITEM *wineItem;
2001 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2002
2003 TRACE("\n");
2004 /*
2005 * validate parameters
2006 */
2007 if (pItem == NULL)
2008 return FALSE;
2009
2010 wineItem = *pItem;
2011 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2012 return FALSE;
2013
2014 /*
2015 * If wParam is TRUE return the text size otherwise return
2016 * the whole item size
2017 */
2018 if (fTextRect)
2019 {
2020 /* Windows does not send TVN_GETDISPINFO here. */
2021
2022 lpRect->top = wineItem->rect.top;
2023 lpRect->bottom = wineItem->rect.bottom;
2024
2025 lpRect->left = wineItem->textOffset;
2026 lpRect->right = wineItem->textOffset + wineItem->textWidth;
2027 }
2028 else
2029 {
2030 *lpRect = wineItem->rect;
2031 }
2032
2033 TRACE("%s [L:%ld R:%ld T:%ld B:%ld]\n", fTextRect ? "text" : "item",
2034 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2035
2036 return TRUE;
2037 }
2038
2039 static inline LRESULT
2040 TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
2041 {
2042 /* Suprise! This does not take integral height into account. */
2043 return infoPtr->clientHeight / infoPtr->uItemHeight;
2044 }
2045
2046
2047 static LRESULT
2048 TREEVIEW_GetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2049 {
2050 TREEVIEW_ITEM *wineItem;
2051
2052 wineItem = tvItem->hItem;
2053 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2054 return FALSE;
2055
2056 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2057
2058 if (tvItem->mask & TVIF_CHILDREN)
2059 {
2060 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2061 FIXME("I_CHILDRENCALLBACK not supported\n");
2062 tvItem->cChildren = wineItem->cChildren;
2063 }
2064
2065 if (tvItem->mask & TVIF_HANDLE)
2066 tvItem->hItem = wineItem;
2067
2068 if (tvItem->mask & TVIF_IMAGE)
2069 tvItem->iImage = wineItem->iImage;
2070
2071 if (tvItem->mask & TVIF_INTEGRAL)
2072 tvItem->iIntegral = wineItem->iIntegral;
2073
2074 /* undocumented: windows ignores TVIF_PARAM and
2075 * * always sets lParam
2076 */
2077 tvItem->lParam = wineItem->lParam;
2078
2079 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2080 tvItem->iSelectedImage = wineItem->iSelectedImage;
2081
2082 if (tvItem->mask & TVIF_STATE)
2083 /* Careful here - Windows ignores the stateMask when you get the state
2084 That contradicts the documentation, but makes more common sense, masking
2085 retrieval in this way seems overkill */
2086 tvItem->state = wineItem->state;
2087
2088 if (tvItem->mask & TVIF_TEXT)
2089 {
2090 if (isW)
2091 {
2092 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2093 {
2094 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2095 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2096 }
2097 else
2098 {
2099 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2100 }
2101 }
2102 else
2103 {
2104 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2105 {
2106 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2107 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2108 }
2109 else
2110 {
2111 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2112 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2113 }
2114 }
2115 }
2116 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2117 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2118
2119 return TRUE;
2120 }
2121
2122 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2123 * which is wrong. */
2124 static LRESULT
2125 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2126 {
2127 TREEVIEW_ITEM *wineItem;
2128 TREEVIEW_ITEM originalItem;
2129
2130 wineItem = tvItem->hItem;
2131
2132 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2133 tvItem->mask);
2134
2135 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2136 return FALSE;
2137
2138 /* store the orignal item values */
2139 originalItem = *wineItem;
2140
2141 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2142 return FALSE;
2143
2144 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2145 if ((tvItem->mask & TVIF_TEXT
2146 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2147 && ISVISIBLE(wineItem))
2148 {
2149 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2150 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2151 }
2152
2153 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2154 {
2155 /* The refresh updates everything, but we can't wait until then. */
2156 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2157
2158 /* if any of the item's values changed and it's not a callback, redraw the item */
2159 if (item_changed(&originalItem, wineItem, tvItem))
2160 {
2161 if (tvItem->mask & TVIF_INTEGRAL)
2162 {
2163 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2164 TREEVIEW_UpdateScrollBars(infoPtr);
2165
2166 TREEVIEW_Invalidate(infoPtr, NULL);
2167 }
2168 else
2169 {
2170 TREEVIEW_UpdateScrollBars(infoPtr);
2171 TREEVIEW_Invalidate(infoPtr, wineItem);
2172 }
2173 }
2174 }
2175
2176 return TRUE;
2177 }
2178
2179 static LRESULT
2180 TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2181 {
2182 TRACE("\n");
2183
2184 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2185 return 0;
2186
2187 return (wineItem->state & mask);
2188 }
2189
2190 static LRESULT
2191 TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2192 {
2193 TREEVIEW_ITEM *retval;
2194
2195 retval = 0;
2196
2197 /* handle all the global data here */
2198 switch (which)
2199 {
2200 case TVGN_CHILD: /* Special case: child of 0 is root */
2201 if (wineItem)
2202 break;
2203 /* fall through */
2204 case TVGN_ROOT:
2205 retval = infoPtr->root->firstChild;
2206 break;
2207
2208 case TVGN_CARET:
2209 retval = infoPtr->selectedItem;
2210 break;
2211
2212 case TVGN_FIRSTVISIBLE:
2213 retval = infoPtr->firstVisible;
2214 break;
2215
2216 case TVGN_DROPHILITE:
2217 retval = infoPtr->dropItem;
2218 break;
2219
2220 case TVGN_LASTVISIBLE:
2221 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2222 break;
2223 }
2224
2225 if (retval)
2226 {
2227 TRACE("flags:%x, returns %p\n", which, retval);
2228 return (LRESULT)retval;
2229 }
2230
2231 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2232
2233 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2234 return FALSE;
2235
2236 switch (which)
2237 {
2238 case TVGN_NEXT:
2239 retval = wineItem->nextSibling;
2240 break;
2241 case TVGN_PREVIOUS:
2242 retval = wineItem->prevSibling;
2243 break;
2244 case TVGN_PARENT:
2245 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2246 break;
2247 case TVGN_CHILD:
2248 retval = wineItem->firstChild;
2249 break;
2250 case TVGN_NEXTVISIBLE:
2251 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2252 break;
2253 case TVGN_PREVIOUSVISIBLE:
2254 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2255 break;
2256 default:
2257 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2258 break;
2259 }
2260
2261 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2262 return (LRESULT)retval;
2263 }
2264
2265
2266 static LRESULT
2267 TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
2268 {
2269 TRACE(" %d\n", infoPtr->uNumItems);
2270 return (LRESULT)infoPtr->uNumItems;
2271 }
2272
2273 static VOID
2274 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2275 {
2276 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2277 {
2278 static const unsigned int state_table[] = { 0, 2, 1 };
2279
2280 unsigned int state;
2281
2282 state = STATEIMAGEINDEX(item->state);
2283 TRACE("state:%x\n", state);
2284 item->state &= ~TVIS_STATEIMAGEMASK;
2285
2286 if (state < 3)
2287 state = state_table[state];
2288
2289 item->state |= INDEXTOSTATEIMAGEMASK(state);
2290
2291 TRACE("state:%x\n", state);
2292 TREEVIEW_Invalidate(infoPtr, item);
2293 }
2294 }
2295
2296
2297 /* Painting *************************************************************/
2298
2299 /* Draw the lines and expand button for an item. Also draws one section
2300 * of the line from item's parent to item's parent's next sibling. */
2301 static void
2302 TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2303 {
2304 LONG centerx, centery;
2305 BOOL lar = ((infoPtr->dwStyle
2306 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2307 > TVS_LINESATROOT);
2308 HBRUSH hbr, hbrOld;
2309
2310 if (!lar && item->iLevel == 0)
2311 return;
2312
2313 hbr = CreateSolidBrush(infoPtr->clrBk);
2314 hbrOld = SelectObject(hdc, hbr);
2315
2316 centerx = (item->linesOffset + item->stateOffset) / 2;
2317 centery = (item->rect.top + item->rect.bottom) / 2;
2318
2319 if (infoPtr->dwStyle & TVS_HASLINES)
2320 {
2321 HPEN hOldPen, hNewPen;
2322 HTREEITEM parent;
2323 LOGBRUSH lb;
2324
2325 /*
2326 * Get a dotted grey pen
2327 */
2328 lb.lbStyle = BS_SOLID;
2329 lb.lbColor = infoPtr->clrLine;
2330 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2331 hOldPen = SelectObject(hdc, hNewPen);
2332
2333 MoveToEx(hdc, item->stateOffset, centery, NULL);
2334 LineTo(hdc, centerx - 1, centery);
2335
2336 if (item->prevSibling || item->parent != infoPtr->root)
2337 {
2338 MoveToEx(hdc, centerx, item->rect.top, NULL);
2339 LineTo(hdc, centerx, centery);
2340 }
2341
2342 if (item->nextSibling)
2343 {
2344 MoveToEx(hdc, centerx, centery, NULL);
2345 LineTo(hdc, centerx, item->rect.bottom + 1);
2346 }
2347
2348 /* Draw the line from our parent to its next sibling. */
2349 parent = item->parent;
2350 while (parent != infoPtr->root)
2351 {
2352 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2353
2354 if (parent->nextSibling
2355 /* skip top-levels unless TVS_LINESATROOT */
2356 && parent->stateOffset > parent->linesOffset)
2357 {
2358 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2359 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2360 }
2361
2362 parent = parent->parent;
2363 }
2364
2365 SelectObject(hdc, hOldPen);
2366 DeleteObject(hNewPen);
2367 }
2368
2369 /*
2370 * Display the (+/-) signs
2371 */
2372
2373 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2374 {
2375 if (item->cChildren)
2376 {
2377 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2378 if (theme)
2379 {
2380 RECT glyphRect = item->rect;
2381 glyphRect.left = item->linesOffset;
2382 glyphRect.right = item->stateOffset;
2383 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2384 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2385 &glyphRect, NULL);
2386 }
2387 else
2388 {
2389 LONG height = item->rect.bottom - item->rect.top;
2390 LONG width = item->stateOffset - item->linesOffset;
2391 LONG rectsize = min(height, width) / 4;
2392 /* plussize = ceil(rectsize * 3/4) */
2393 LONG plussize = (rectsize + 1) * 3 / 4;
2394
2395 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2396 HPEN hOldPen = SelectObject(hdc, hNewPen);
2397
2398 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2399 centerx + rectsize + 2, centery + rectsize + 2);
2400
2401 SelectObject(hdc, hOldPen);
2402 DeleteObject(hNewPen);
2403
2404 if (height < 18 || width < 18)
2405 {
2406 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2407 LineTo(hdc, centerx + plussize, centery);
2408
2409 if (!(item->state & TVIS_EXPANDED))
2410 {
2411 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2412 LineTo(hdc, centerx, centery + plussize);
2413 }
2414 }
2415 else
2416 {
2417 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2418 centerx + plussize, centery + 2);
2419
2420 if (!(item->state & TVIS_EXPANDED))
2421 {
2422 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2423 centerx + 2, centery + plussize);
2424 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2425 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2426 }
2427 }
2428 }
2429 }
2430 }
2431 SelectObject(hdc, hbrOld);
2432 DeleteObject(hbr);
2433 }
2434
2435 static void
2436 TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2437 {
2438 INT cditem;
2439 HFONT hOldFont;
2440 COLORREF oldTextColor, oldTextBkColor;
2441 int centery;
2442 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2443 NMTVCUSTOMDRAW nmcdhdr;
2444
2445 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2446
2447 /* - If item is drop target or it is selected and window is in focus -
2448 * use blue background (COLOR_HIGHLIGHT).
2449 * - If item is selected, window is not in focus, but it has style
2450 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2451 * - Otherwise - use background color
2452 */
2453 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2454 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2455 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2456 {
2457 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2458 {
2459 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2460 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2461 }
2462 else
2463 {
2464 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2465 if (infoPtr->clrText == -1)
2466 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2467 else
2468 nmcdhdr.clrText = infoPtr->clrText;
2469 }
2470 }
2471 else
2472 {
2473 nmcdhdr.clrTextBk = infoPtr->clrBk;
2474 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2475 nmcdhdr.clrText = comctl32_color.clrHighlight;
2476 else if (infoPtr->clrText == -1)
2477 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2478 else
2479 nmcdhdr.clrText = infoPtr->clrText;
2480 }
2481
2482 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2483
2484 /* The custom draw handler can query the text rectangle,
2485 * so get ready. */
2486 /* should already be known, set to 0 when changed */
2487 if (!wineItem->textWidth)
2488 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2489
2490 cditem = 0;
2491
2492 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2493 {
2494 cditem = TREEVIEW_SendCustomDrawItemNotify
2495 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2496 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2497
2498 if (cditem & CDRF_SKIPDEFAULT)
2499 {
2500 SelectObject(hdc, hOldFont);
2501 return;
2502 }
2503 }
2504
2505 if (cditem & CDRF_NEWFONT)
2506 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2507
2508 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2509
2510 /* Set colors. Custom draw handler can change these so we do this after it. */
2511 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2512 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2513
2514 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2515
2516 /*
2517 * Display the images associated with this item
2518 */
2519 {
2520 INT imageIndex;
2521
2522 /* State images are displayed to the left of the Normal image
2523 * image number is in state; zero should be `display no image'.
2524 */
2525 imageIndex = STATEIMAGEINDEX(wineItem->state);
2526
2527 if (infoPtr->himlState && imageIndex)
2528 {
2529 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2530 wineItem->stateOffset,
2531 centery - infoPtr->stateImageHeight / 2,
2532 ILD_NORMAL);
2533 }
2534
2535 /* Now, draw the normal image; can be either selected or
2536 * non-selected image.
2537 */
2538
2539 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2540 {
2541 /* The item is currently selected */
2542 imageIndex = wineItem->iSelectedImage;
2543 }
2544 else
2545 {
2546 /* The item is not selected */
2547 imageIndex = wineItem->iImage;
2548 }
2549
2550 if (infoPtr->himlNormal)
2551 {
2552 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2553
2554 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2555 wineItem->imageOffset,
2556 centery - infoPtr->normalImageHeight / 2,
2557 ILD_NORMAL | ovlIdx);
2558 }
2559 }
2560
2561
2562 /*
2563 * Display the text associated with this item
2564 */
2565
2566 /* Don't paint item's text if it's being edited */
2567 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2568 {
2569 if (wineItem->pszText)
2570 {
2571 RECT rcText;
2572
2573 rcText.top = wineItem->rect.top;
2574 rcText.bottom = wineItem->rect.bottom;
2575 rcText.left = wineItem->textOffset;
2576 rcText.right = rcText.left + wineItem->textWidth + 4;
2577
2578 TRACE("drawing text %s at (%ld,%ld)-(%ld,%ld)\n",
2579 debugstr_w(wineItem->pszText),
2580 rcText.left, rcText.top, rcText.right, rcText.bottom);
2581
2582 /* Draw it */
2583 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2584 ETO_CLIPPED | ETO_OPAQUE,
2585 &rcText,
2586 wineItem->pszText,
2587 lstrlenW(wineItem->pszText),
2588 NULL);
2589
2590 /* Draw the box around the selected item */
2591 if ((wineItem == infoPtr->selectedItem) && inFocus)
2592 {
2593 DrawFocusRect(hdc,&rcText);
2594 }
2595
2596 }
2597 }
2598
2599 /* Draw insertion mark if necessary */
2600
2601 if (infoPtr->insertMarkItem)
2602 TRACE("item:%d,mark:%p\n",
2603 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2604 infoPtr->insertMarkItem);
2605
2606 if (wineItem == infoPtr->insertMarkItem)
2607 {
2608 HPEN hNewPen, hOldPen;
2609 int offset;
2610 int left, right;
2611
2612 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2613 hOldPen = SelectObject(hdc, hNewPen);
2614
2615 if (infoPtr->insertBeforeorAfter)
2616 offset = wineItem->rect.bottom - 1;
2617 else
2618 offset = wineItem->rect.top + 1;
2619
2620 left = wineItem->textOffset - 2;
2621 right = wineItem->textOffset + wineItem->textWidth + 2;
2622
2623 MoveToEx(hdc, left, offset - 3, NULL);
2624 LineTo(hdc, left, offset + 4);
2625
2626 MoveToEx(hdc, left, offset, NULL);
2627 LineTo(hdc, right + 1, offset);
2628
2629 MoveToEx(hdc, right, offset + 3, NULL);
2630 LineTo(hdc, right, offset - 4);
2631
2632 SelectObject(hdc, hOldPen);
2633 DeleteObject(hNewPen);
2634 }
2635
2636 if (cditem & CDRF_NOTIFYPOSTPAINT)
2637 {
2638 cditem = TREEVIEW_SendCustomDrawItemNotify
2639 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2640 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2641 }
2642
2643 /* Restore the hdc state */
2644 SetTextColor(hdc, oldTextColor);
2645 SetBkColor(hdc, oldTextBkColor);
2646 SelectObject(hdc, hOldFont);
2647 }
2648
2649 /* Computes treeHeight and treeWidth and updates the scroll bars.
2650 */
2651 static void
2652 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2653 {
2654 TREEVIEW_ITEM *wineItem;
2655 HWND hwnd = infoPtr->hwnd;
2656 BOOL vert = FALSE;
2657 BOOL horz = FALSE;
2658 SCROLLINFO si;
2659 LONG scrollX = infoPtr->scrollX;
2660
2661 infoPtr->treeWidth = 0;
2662 infoPtr->treeHeight = 0;
2663
2664 /* We iterate through all visible items in order to get the tree height
2665 * and width */
2666 wineItem = infoPtr->root->firstChild;
2667
2668 while (wineItem != NULL)
2669 {
2670 if (ISVISIBLE(wineItem))
2671 {
2672 /* actually we draw text at textOffset + 2 */
2673 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2674 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2675
2676 /* This is scroll-adjusted, but we fix this below. */
2677 infoPtr->treeHeight = wineItem->rect.bottom;
2678 }
2679
2680 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2681 }
2682
2683 /* Fix the scroll adjusted treeHeight and treeWidth. */
2684 if (infoPtr->root->firstChild)
2685 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2686
2687 infoPtr->treeWidth += infoPtr->scrollX;
2688
2689 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2690
2691 /* Adding one scroll bar may take up enough space that it forces us
2692 * to add the other as well. */
2693 if (infoPtr->treeHeight > infoPtr->clientHeight)
2694 {
2695 vert = TRUE;
2696
2697 if (infoPtr->treeWidth
2698 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2699 horz = TRUE;
2700 }
2701 else if (infoPtr->treeWidth > infoPtr->clientWidth)
2702 horz = TRUE;
2703
2704 if (!vert && horz && infoPtr->treeHeight
2705 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2706 vert = TRUE;
2707
2708 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2709
2710 si.cbSize = sizeof(SCROLLINFO);
2711 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2712 si.nMin = 0;
2713
2714 if (vert)
2715 {
2716 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2717 if ( si.nPage && NULL != infoPtr->firstVisible)
2718 {
2719 si.nPos = infoPtr->firstVisible->visibleOrder;
2720 si.nMax = infoPtr->maxVisibleOrder - 1;
2721
2722 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2723
2724 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2725 ShowScrollBar(hwnd, SB_VERT, TRUE);
2726 infoPtr->uInternalStatus |= TV_VSCROLL;
2727 }
2728 else
2729 {
2730 if (infoPtr->uInternalStatus & TV_VSCROLL)
2731 ShowScrollBar(hwnd, SB_VERT, FALSE);
2732 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2733 }
2734 }
2735 else
2736 {
2737 if (infoPtr->uInternalStatus & TV_VSCROLL)
2738 ShowScrollBar(hwnd, SB_VERT, FALSE);
2739 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2740 }
2741
2742 if (horz)
2743 {
2744 si.nPage = infoPtr->clientWidth;
2745 si.nPos = infoPtr->scrollX;
2746 si.nMax = infoPtr->treeWidth - 1;
2747
2748 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2749 {
2750 si.nPos = si.nMax - max( si.nPage-1, 0 );
2751 scrollX = si.nPos;
2752 }
2753
2754 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2755 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2756 infoPtr->uInternalStatus |= TV_HSCROLL;
2757
2758 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2759 }
2760 else
2761 {
2762 if (infoPtr->uInternalStatus & TV_HSCROLL)
2763 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2764 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2765
2766 scrollX = 0;
2767 }
2768
2769 if (infoPtr->scrollX != scrollX)
2770 {
2771 TREEVIEW_HScroll(infoPtr,
2772 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2773 }
2774
2775 if (!horz)
2776 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2777 }
2778
2779 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2780 static LRESULT
2781 TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
2782 {
2783 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2784 RECT rect;
2785
2786 GetClientRect(infoPtr->hwnd, &rect);
2787 FillRect(hDC, &rect, hBrush);
2788 DeleteObject(hBrush);
2789
2790 return 1;
2791 }
2792
2793 static void
2794 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
2795 {
2796 HWND hwnd = infoPtr->hwnd;
2797 RECT rect = *rc;
2798 TREEVIEW_ITEM *wineItem;
2799
2800 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2801 {
2802 TRACE("empty window\n");
2803 return;
2804 }
2805
2806 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2807 hdc, rect);
2808
2809 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2810 {
2811 ReleaseDC(hwnd, hdc);
2812 return;
2813 }
2814
2815 for (wineItem = infoPtr->root->firstChild;
2816 wineItem != NULL;
2817 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2818 {
2819 if (ISVISIBLE(wineItem))
2820 {
2821 /* Avoid unneeded calculations */
2822 if (wineItem->rect.top > rect.bottom)
2823 break;
2824 if (wineItem->rect.bottom < rect.top)
2825 continue;
2826
2827 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2828 }
2829 }
2830
2831 TREEVIEW_UpdateScrollBars(infoPtr);
2832
2833 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2834 infoPtr->cdmode =
2835 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2836 }
2837
2838 static void
2839 TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2840 {
2841 if (item != NULL)
2842 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2843 else
2844 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2845 }
2846
2847 static LRESULT
2848 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2849 {
2850 HDC hdc;
2851 PAINTSTRUCT ps;
2852 RECT rc;
2853
2854 TRACE("\n");
2855
2856 if (wParam)
2857 {
2858 hdc = (HDC)wParam;
2859 GetClientRect(infoPtr->hwnd, &rc);
2860 TREEVIEW_EraseBackground(infoPtr, hdc);
2861 }
2862 else
2863 {
2864 hdc = BeginPaint(infoPtr->hwnd, &ps);
2865 rc = ps.rcPaint;
2866 }
2867
2868 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2869 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2870
2871 if (!wParam)
2872 EndPaint(infoPtr->hwnd, &ps);
2873
2874 return 0;
2875 }
2876
2877
2878 /* Sorting **************************************************************/
2879
2880 /***************************************************************************
2881 * Forward the DPA local callback to the treeview owner callback
2882 */
2883 static INT WINAPI
2884 TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
2885 {
2886 /* Forward the call to the client-defined callback */
2887 return pCallBackSort->lpfnCompare(first->lParam,
2888 second->lParam,
2889 pCallBackSort->lParam);
2890 }
2891
2892 /***************************************************************************
2893 * Treeview native sort routine: sort on item text.
2894 */
2895 static INT WINAPI
2896 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2897 TREEVIEW_INFO *infoPtr)
2898 {
2899 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2900 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2901
2902 if(first->pszText && second->pszText)
2903 return lstrcmpiW(first->pszText, second->pszText);
2904 else if(first->pszText)
2905 return -1;
2906 else if(second->pszText)
2907 return 1;
2908 else
2909 return 0;
2910 }
2911
2912 /* Returns the number of physical children belonging to item. */
2913 static INT
2914 TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2915 {
2916 INT cChildren = 0;
2917 HTREEITEM hti;
2918
2919 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2920 cChildren++;
2921
2922 return cChildren;
2923 }
2924
2925 /* Returns a DPA containing a pointer to each physical child of item in
2926 * sibling order. If item has no children, an empty DPA is returned. */
2927 static HDPA
2928 TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2929 {
2930 HTREEITEM child = item->firstChild;
2931
2932 HDPA list = DPA_Create(8);
2933 if (list == 0) return NULL;
2934
2935 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2936 {
2937 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2938 {
2939 DPA_Destroy(list);
2940 return NULL;
2941 }
2942 }
2943
2944 return list;
2945 }
2946
2947 /***************************************************************************
2948 * Setup the treeview structure with regards of the sort method
2949 * and sort the children of the TV item specified in lParam
2950 * fRecurse: currently unused. Should be zero.
2951 * parent: if pSort!=NULL, should equal pSort->hParent.
2952 * otherwise, item which child items are to be sorted.
2953 * pSort: sort method info. if NULL, sort on item text.
2954 * if non-NULL, sort on item's lParam content, and let the
2955 * application decide what that means. See also TVM_SORTCHILDRENCB.
2956 */
2957
2958 static LRESULT
2959 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2960 LPTVSORTCB pSort)
2961 {
2962 INT cChildren;
2963 PFNDPACOMPARE pfnCompare;
2964 LPARAM lpCompare;
2965
2966 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2967 if (parent == TVI_ROOT || parent == NULL)
2968 parent = infoPtr->root;
2969
2970 /* Check for a valid handle to the parent item */
2971 if (!TREEVIEW_ValidItem(infoPtr, parent))
2972 {
2973 ERR("invalid item hParent=%p\n", parent);
2974 return FALSE;
2975 }
2976
2977 if (pSort)
2978 {
2979 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2980 lpCompare = (LPARAM)pSort;
2981 }
2982 else
2983 {
2984 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2985 lpCompare = (LPARAM)infoPtr;
2986 }
2987
2988 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2989
2990 /* Make sure there is something to sort */
2991 if (cChildren > 1)
2992 {
2993 /* TREEVIEW_ITEM rechaining */
2994 INT count = 0;
2995 HTREEITEM item = 0;
2996 HTREEITEM nextItem = 0;
2997 HTREEITEM prevItem = 0;
2998
2999 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
3000
3001 if (sortList == NULL)
3002 return FALSE;
3003
3004 /* let DPA sort the list */
3005 DPA_Sort(sortList, pfnCompare, lpCompare);
3006
3007 /* The order of DPA entries has been changed, so fixup the
3008 * nextSibling and prevSibling pointers. */
3009
3010 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3011 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3012 {
3013 /* link the two current item toghether */
3014 item->nextSibling = nextItem;
3015 nextItem->prevSibling = item;
3016
3017 if (prevItem == NULL)
3018 {
3019 /* this is the first item, update the parent */
3020 parent->firstChild = item;
3021 item->prevSibling = NULL;
3022 }
3023 else
3024 {
3025 /* fix the back chaining */
3026 item->prevSibling = prevItem;
3027 }
3028
3029 /* get ready for the next one */
3030 prevItem = item;
3031 item = nextItem;
3032 }
3033
3034 /* the last item is pointed to by item and never has a sibling */
3035 item->nextSibling = NULL;
3036 parent->lastChild = item;
3037
3038 DPA_Destroy(sortList);
3039
3040 TREEVIEW_VerifyTree(infoPtr);
3041
3042 if (parent->state & TVIS_EXPANDED)
3043 {
3044 int visOrder = infoPtr->firstVisible->visibleOrder;
3045
3046 if (parent == infoPtr->root)
3047 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3048 else
3049 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3050
3051 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3052 {
3053 TREEVIEW_ITEM *item;
3054
3055 for (item = infoPtr->root->firstChild; item != NULL;
3056 item = TREEVIEW_GetNextListItem(infoPtr, item))
3057 {
3058 if (item->visibleOrder == visOrder)
3059 break;
3060 }
3061
3062 if (!item) item = parent->firstChild;
3063 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3064 }
3065
3066 TREEVIEW_Invalidate(infoPtr, NULL);
3067 }
3068
3069 return TRUE;
3070 }
3071 return FALSE;
3072 }
3073
3074
3075 /***************************************************************************
3076 * Setup the treeview structure with regards of the sort method
3077 * and sort the children of the TV item specified in lParam
3078 */
3079 static LRESULT
3080 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3081 {
3082 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3083 }
3084
3085
3086 /***************************************************************************
3087 * Sort the children of the TV item specified in lParam.
3088 */
3089 static LRESULT
3090 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3091 {
3092 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3093 }
3094
3095
3096 /* Expansion/Collapse ***************************************************/
3097
3098 static BOOL
3099 TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3100 UINT action)
3101 {
3102 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3103 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3104 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3105 0, wineItem);
3106 }
3107
3108 static VOID
3109 TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3110 UINT action)
3111 {
3112 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3113 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3114 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3115 0, wineItem);
3116 }
3117
3118
3119 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3120 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3121 static BOOL
3122 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3123 BOOL bRemoveChildren, BOOL bUser)
3124 {
3125 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3126 BOOL bSetSelection, bSetFirstVisible;
3127 RECT scrollRect;
3128 LONG scrollDist = 0;
3129 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3130
3131 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3132
3133 if (!(wineItem->state & TVIS_EXPANDED))
3134 return FALSE;
3135
3136 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3137 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3138
3139 if (wineItem->firstChild == NULL)
3140 return FALSE;
3141
3142 wineItem->state &= ~TVIS_EXPANDED;
3143
3144 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3145 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3146
3147 bSetSelection = (infoPtr->selectedItem != NULL
3148 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3149
3150 bSetFirstVisible = (infoPtr->firstVisible != NULL
3151 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3152
3153 tmpItem = wineItem;
3154 while (tmpItem)
3155 {
3156 if (tmpItem->nextSibling)
3157 {
3158 nextItem = tmpItem->nextSibling;
3159 break;
3160 }
3161 tmpItem = tmpItem->parent;
3162 }
3163
3164 if (nextItem)
3165 scrollDist = nextItem->rect.top;
3166
3167 if (bRemoveChildren)
3168 {
3169 INT old_cChildren = wineItem->cChildren;
3170 TRACE("TVE_COLLAPSERESET\n");
3171 wineItem->state &= ~TVIS_EXPANDEDONCE;
3172 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3173 wineItem->cChildren = old_cChildren;
3174 }
3175
3176 if (wineItem->firstChild)
3177 {
3178 TREEVIEW_ITEM *item, *sibling;
3179
3180 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3181
3182 for (item = wineItem->firstChild; item != sibling;
3183 item = TREEVIEW_GetNextListItem(infoPtr, item))
3184 {
3185 item->visibleOrder = -1;
3186 }
3187 }
3188
3189 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3190
3191 if (nextItem)
3192 scrollDist = -(scrollDist - nextItem->rect.top);
3193
3194 if (bSetSelection)
3195 {
3196 /* Don't call DoSelectItem, it sends notifications. */
3197 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3198 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3199 wineItem->state |= TVIS_SELECTED;
3200 infoPtr->selectedItem = wineItem;
3201 }
3202
3203 TREEVIEW_UpdateScrollBars(infoPtr);
3204
3205 scrollRect.left = 0;
3206 scrollRect.right = infoPtr->clientWidth;
3207 scrollRect.bottom = infoPtr->clientHeight;
3208
3209 if (nextItem)
3210 {
3211 scrollRect.top = nextItem->rect.top;
3212
3213 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3214 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3215 TREEVIEW_Invalidate(infoPtr, wineItem);
3216 } else {
3217 scrollRect.top = wineItem->rect.top;
3218 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3219 }
3220
3221 TREEVIEW_SetFirstVisible(infoPtr,
3222 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3223 TRUE);
3224
3225 return TRUE;
3226 }
3227
3228 static BOOL
3229 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3230 BOOL bExpandPartial, BOOL bUser)
3231 {
3232 LONG scrollDist;
3233 LONG orgNextTop = 0;
3234 RECT scrollRect;
3235 TREEVIEW_ITEM *nextItem, *tmpItem;
3236
3237 TRACE("\n");
3238
3239 if (wineItem->state & TVIS_EXPANDED)
3240 return TRUE;
3241
3242 tmpItem = wineItem; nextItem = NULL;
3243 while (tmpItem)
3244 {
3245 if (tmpItem->nextSibling)
3246 {
3247 nextItem = tmpItem->nextSibling;
3248 break;
3249 }
3250 tmpItem = tmpItem->parent;
3251 }
3252
3253 if (nextItem)
3254 orgNextTop = nextItem->rect.top;
3255
3256 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3257
3258 if (bUser || ((wineItem->cChildren != 0) &&
3259 !(wineItem->state & TVIS_EXPANDEDONCE)))
3260 {
3261 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3262 {
3263 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3264 return FALSE;
3265 }
3266
3267 if (!wineItem->firstChild)
3268 return FALSE;
3269
3270 wineItem->state |= TVIS_EXPANDED;
3271 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3272 wineItem->state |= TVIS_EXPANDEDONCE;
3273 }
3274 else
3275 {
3276 if (!wineItem->firstChild)
3277 return FALSE;
3278
3279 /* this item has already been expanded */
3280 wineItem->state |= TVIS_EXPANDED;
3281 }
3282
3283 if (bExpandPartial)
3284 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3285
3286 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3287 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3288 TREEVIEW_UpdateScrollBars(infoPtr);
3289
3290 scrollRect.left = 0;
3291 scrollRect.bottom = infoPtr->treeHeight;
3292 scrollRect.right = infoPtr->clientWidth;
3293 if (nextItem)
3294 {
3295 scrollDist = nextItem->rect.top - orgNextTop;
3296 scrollRect.top = orgNextTop;
3297
3298 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3299 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3300 TREEVIEW_Invalidate (infoPtr, wineItem);
3301 } else {
3302 scrollRect.top = wineItem->rect.top;
3303 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3304 }
3305
3306 /* Scroll up so that as many children as possible are visible.
3307 * This fails when expanding causes an HScroll bar to appear, but we
3308 * don't know that yet, so the last item is obscured. */
3309 if (wineItem->firstChild != NULL)
3310 {
3311 int nChildren = wineItem->lastChild->visibleOrder
3312 - wineItem->firstChild->visibleOrder + 1;
3313
3314 int visible_pos = wineItem->visibleOrder
3315 - infoPtr->firstVisible->visibleOrder;
3316
3317 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3318
3319 if (visible_pos > 0 && nChildren > rows_below)
3320 {
3321 int scroll = nChildren - rows_below;
3322
3323 if (scroll > visible_pos)
3324 scroll = visible_pos;
3325
3326 if (scroll > 0)
3327 {
3328 TREEVIEW_ITEM *newFirstVisible
3329 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3330 scroll);
3331
3332
3333 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3334 }
3335 }
3336 }
3337
3338 return TRUE;
3339 }
3340
3341 static BOOL
3342 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3343 {
3344 TRACE("\n");
3345
3346 if (wineItem->state & TVIS_EXPANDED)
3347 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3348 else
3349 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3350 }
3351
3352 static VOID
3353 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3354 {
3355 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3356
3357 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3358 {
3359 if (TREEVIEW_HasChildren(infoPtr, item))
3360 TREEVIEW_ExpandAll(infoPtr, item);
3361 }
3362 }
3363
3364 /* Note:If the specified item is the child of a collapsed parent item,
3365 the parent's list of child items is (recursively) expanded to reveal the
3366 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3367 know if it also applies here.
3368 */
3369
3370 static LRESULT
3371 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3372 {
3373 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3374 return 0;
3375
3376 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3377 TREEVIEW_ItemName(wineItem), flag,
3378 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3379
3380 switch (flag & TVE_TOGGLE)
3381 {
3382 case TVE_COLLAPSE:
3383 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3384 FALSE);
3385
3386 case TVE_EXPAND:
3387 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3388 FALSE);
3389
3390 case TVE_TOGGLE:
3391 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3392
3393 default:
3394 return 0;
3395 }
3396
3397 #if 0
3398 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3399 #endif
3400 }
3401
3402 /* Hit-Testing **********************************************************/
3403
3404 static TREEVIEW_ITEM *
3405 TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
3406 {
3407 TREEVIEW_ITEM *wineItem;
3408 LONG row;
3409
3410 if (!infoPtr->firstVisible)
3411 return NULL;
3412
3413 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3414
3415 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3416 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3417 {
3418 if (row >= wineItem->visibleOrder
3419 && row < wineItem->visibleOrder + wineItem->iIntegral)
3420 break;
3421 }
3422
3423 return wineItem;
3424 }
3425
3426 static LRESULT
3427 TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3428 {
3429 TREEVIEW_ITEM *wineItem;
3430 RECT rect;
3431 UINT status;
3432 LONG x, y;
3433
3434 lpht->hItem = 0;
3435 GetClientRect(infoPtr->hwnd, &rect);
3436 status = 0;
3437 x = lpht->pt.x;
3438 y = lpht->pt.y;
3439
3440 if (x < rect.left)
3441 {
3442 status |= TVHT_TOLEFT;
3443 }
3444 else if (x > rect.right)
3445 {
3446 status |= TVHT_TORIGHT;
3447 }
3448
3449 if (y < rect.top)
3450 {
3451 status |= TVHT_ABOVE;
3452 }
3453 else if (y > rect.bottom)
3454 {
3455 status |= TVHT_BELOW;
3456 }
3457
3458 if (status)
3459 {
3460 lpht->flags = status;
3461 return (LRESULT)(HTREEITEM)NULL;
3462 }
3463
3464 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3465 if (!wineItem)
3466 {
3467 lpht->flags = TVHT_NOWHERE;
3468 return (LRESULT)(HTREEITEM)NULL;
3469 }
3470
3471 if (x >= wineItem->textOffset + wineItem->textWidth)
3472 {
3473 lpht->flags = TVHT_ONITEMRIGHT;
3474 }
3475 else if (x >= wineItem->textOffset)
3476 {
3477 lpht->flags = TVHT_ONITEMLABEL;
3478 }
3479 else if (x >= wineItem->imageOffset)
3480 {
3481 lpht->flags = TVHT_ONITEMICON;
3482 }
3483 else if (x >= wineItem->stateOffset)
3484 {
3485 lpht->flags = TVHT_ONITEMSTATEICON;
3486 }
3487 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3488 {
3489 lpht->flags = TVHT_ONITEMBUTTON;
3490 }
3491 else
3492 {
3493 lpht->flags = TVHT_ONITEMINDENT;
3494 }
3495
3496 lpht->hItem = wineItem;
3497 TRACE("(%ld,%ld):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3498
3499 return (LRESULT)wineItem;
3500 }
3501
3502 /* Item Label Editing ***************************************************/
3503
3504 static LRESULT
3505 TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
3506 {
3507 return (LRESULT)infoPtr->hwndEdit;
3508 }
3509
3510 static LRESULT CALLBACK
3511 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3512 {
3513 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3514 BOOL bCancel = FALSE;
3515 LRESULT rc;
3516
3517 switch (uMsg)
3518 {
3519 case WM_PAINT:
3520 TRACE("WM_PAINT start\n");
3521 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3522 lParam);
3523 TRACE("WM_PAINT done\n");
3524 return rc;
3525
3526 case WM_KILLFOCUS:
3527 if (infoPtr->bIgnoreEditKillFocus)
3528 return TRUE;
3529 break;
3530
3531 case WM_GETDLGCODE:
3532 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3533
3534 case WM_KEYDOWN:
3535 if (wParam == (WPARAM)VK_ESCAPE)
3536 {
3537 bCancel = TRUE;
3538 break;
3539 }
3540 else if (wParam == (WPARAM)VK_RETURN)
3541 {
3542 break;
3543 }
3544
3545 /* fall through */
3546 default:
3547 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3548 }
3549
3550 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3551 /* eg. Using a messagebox */
3552
3553 infoPtr->bIgnoreEditKillFocus = TRUE;
3554 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3555 infoPtr->bIgnoreEditKillFocus = FALSE;
3556
3557 return 0;
3558 }
3559
3560
3561 /* should handle edit control messages here */
3562
3563 static LRESULT
3564 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3565 {
3566 TRACE("%x %ld\n", wParam, lParam);
3567
3568 switch (HIWORD(wParam))
3569 {
3570 case EN_UPDATE:
3571 {
3572 /*
3573 * Adjust the edit window size
3574 */
3575 WCHAR buffer[1024];
3576 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3577 HDC hdc = GetDC(infoPtr->hwndEdit);
3578 SIZE sz;
3579 int len;
3580 HFONT hFont, hOldFont = 0;
3581
3582 infoPtr->bLabelChanged = TRUE;
3583
3584 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3585
3586 /* Select font to get the right dimension of the string */
3587 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3588
3589 if (hFont != 0)
3590 {
3591 hOldFont = SelectObject(hdc, hFont);
3592 }
3593
3594 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3595 {
3596 TEXTMETRICW textMetric;
3597
3598 /* Add Extra spacing for the next character */
3599 GetTextMetricsW(hdc, &textMetric);
3600 sz.cx += (textMetric.tmMaxCharWidth * 2);
3601
3602 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3603 sz.cx = min(sz.cx,
3604 infoPtr->clientWidth - editItem->textOffset + 2);
3605
3606 SetWindowPos(infoPtr->hwndEdit,
3607 HWND_TOP,
3608 0,
3609 0,
3610 sz.cx,
3611 editItem->rect.bottom - editItem->rect.top + 3,
3612 SWP_NOMOVE | SWP_DRAWFRAME);
3613 }
3614
3615 if (hFont != 0)
3616 {
3617 SelectObject(hdc, hOldFont);
3618 }
3619
3620 ReleaseDC(infoPtr->hwnd, hdc);
3621 break;
3622 }
3623
3624 default:
3625 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3626 }
3627
3628 return 0;
3629 }
3630
3631 static HWND
3632 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3633 {
3634 HWND hwnd = infoPtr->hwnd;
3635 HWND hwndEdit;
3636 SIZE sz;
3637 TREEVIEW_ITEM *editItem = hItem;
3638 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3639 HDC hdc;
3640 HFONT hOldFont=0;
3641 TEXTMETRICW textMetric;
3642 static const WCHAR EditW[] = {'E','d','i','t',0};
3643
3644 TRACE("%p %p\n", hwnd, hItem);
3645 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3646 return NULL;
3647
3648 if (infoPtr->hwndEdit)
3649 return infoPtr->hwndEdit;
3650
3651 infoPtr->bLabelChanged = FALSE;
3652
3653 /* Make sure that edit item is selected */
3654 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3655 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3656
3657 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3658
3659 hdc = GetDC(hwnd);
3660 /* Select the font to get appropriate metric dimensions */
3661 if (infoPtr->hFont != 0)
3662 {
3663 hOldFont = SelectObject(hdc, infoPtr->hFont);
3664 }
3665
3666 /* Get string length in pixels */
3667 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3668 &sz);
3669
3670 /* Add Extra spacing for the next character */
3671 GetTextMetricsW(hdc, &textMetric);
3672 sz.cx += (textMetric.tmMaxCharWidth * 2);
3673
3674 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3675 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3676
3677 if (infoPtr->hFont != 0)
3678 {
3679 SelectObject(hdc, hOldFont);
3680 }
3681
3682 ReleaseDC(hwnd, hdc);
3683 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3684 EditW,
3685 0,
3686 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3687 WS_CLIPSIBLINGS | ES_WANTRETURN |
3688 ES_LEFT, editItem->textOffset - 2,
3689 editItem->rect.top - 1, sz.cx + 3,
3690 editItem->rect.bottom -
3691 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3692 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3693
3694 infoPtr->hwndEdit = hwndEdit;
3695
3696 /* Get a 2D border. */
3697 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3698 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3699 SetWindowLongW(hwndEdit, GWL_STYLE,
3700 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3701
3702 SendMessageW(hwndEdit, WM_SETFONT,
3703 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3704
3705 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3706 (DWORD_PTR)
3707 TREEVIEW_Edit_SubclassProc);
3708
3709 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3710 {
3711 DestroyWindow(hwndEdit);
3712 infoPtr->hwndEdit = 0;
3713 return NULL;
3714 }
3715
3716 infoPtr->selectedItem = hItem;
3717 SetWindowTextW(hwndEdit, editItem->pszText);
3718 SetFocus(hwndEdit);
3719 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3720 ShowWindow(hwndEdit, SW_SHOW);
3721
3722 return hwndEdit;
3723 }
3724
3725
3726 static LRESULT
3727 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3728 {
3729 HWND hwnd = infoPtr->hwnd;
3730 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3731 NMTVDISPINFOW tvdi;
3732 BOOL bCommit;
3733 WCHAR tmpText[1024] = { '\0' };
3734 WCHAR *newText = tmpText;
3735 int iLength = 0;
3736
3737 if (!infoPtr->hwndEdit)
3738 return FALSE;
3739
3740 tvdi.hdr.hwndFrom = hwnd;
3741 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3742 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3743 tvdi.item.mask = 0;
3744 tvdi.item.hItem = editedItem;
3745 tvdi.item.state = editedItem->state;
3746 tvdi.item.lParam = editedItem->lParam;
3747
3748 if (!bCancel)
3749 {
3750 if (!infoPtr->bNtfUnicode)
3751 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3752 else
3753 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3754
3755 if (iLength >= 1023)
3756 {
3757 ERR("Insufficient space to retrieve new item label\n");
3758 }
3759
3760 tvdi.item.mask = TVIF_TEXT;
3761 tvdi.item.pszText = tmpText;
3762 tvdi.item.cchTextMax = iLength + 1;
3763 }
3764 else
3765 {
3766 tvdi.item.pszText = NULL;
3767 tvdi.item.cchTextMax = 0;
3768 }
3769
3770 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
3771 (WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
3772
3773 if (!bCancel && bCommit) /* Apply the changes */
3774 {
3775 if (!infoPtr->bNtfUnicode)
3776 {
3777 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3778 newText = Alloc(len * sizeof(WCHAR));
3779 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3780 iLength = len - 1;
3781 }
3782
3783 if (strcmpW(newText, editedItem->pszText) != 0)
3784 {
3785 if (NULL == ReAlloc(editedItem->pszText, iLength + 1))
3786 {
3787 ERR("OutOfMemory, cannot allocate space for label\n");
3788 DestroyWindow(infoPtr->hwndEdit);
3789 infoPtr->hwndEdit = 0;
3790 return FALSE;
3791 }
3792 else
3793 {
3794 editedItem->cchTextMax = iLength + 1;
3795 strcpyW(editedItem->pszText, newText);
3796 }
3797 }
3798 if(newText != tmpText) Free(newText);
3799 }
3800
3801 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3802 DestroyWindow(infoPtr->hwndEdit);
3803 infoPtr->hwndEdit = 0;
3804 return TRUE;
3805 }
3806
3807 static LRESULT
3808 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3809 {
3810 if (wParam != TV_EDIT_TIMER)
3811 {
3812 ERR("got unknown timer\n");
3813 return 1;
3814 }
3815
3816 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3817 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3818
3819 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3820
3821 return 0;
3822 }
3823
3824
3825 /* Mouse Tracking/Drag **************************************************/
3826
3827 /***************************************************************************
3828 * This is quite unusual piece of code, but that's how it's implemented in
3829 * Windows.
3830 */
3831 static LRESULT
3832 TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
3833 {
3834 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3835 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3836 RECT r;
3837 MSG msg;
3838
3839 r.top = pt.y - cyDrag;
3840 r.left = pt.x - cxDrag;
3841 r.bottom = pt.y + cyDrag;
3842 r.right = pt.x + cxDrag;
3843
3844 SetCapture(infoPtr->hwnd);
3845
3846 while (1)
3847 {
3848 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3849 {
3850 if (msg.message == WM_MOUSEMOVE)
3851 {
3852 pt.x = (short)LOWORD(msg.lParam);
3853 pt.y = (short)HIWORD(msg.lParam);
3854 if (PtInRect(&r, pt))
3855 continue;
3856 else
3857 {
3858 ReleaseCapture();
3859 return 1;
3860 }
3861 }
3862 else if (msg.message >= WM_LBUTTONDOWN &&
3863 msg.message <= WM_RBUTTONDBLCLK)
3864 {
3865 if (msg.message == WM_RBUTTONUP)
3866 TREEVIEW_RButtonUp(infoPtr, &pt);
3867 break;
3868 }
3869
3870 DispatchMessageW(&msg);
3871 }
3872
3873 if (GetCapture() != infoPtr->hwnd)
3874 return 0;
3875 }
3876
3877 ReleaseCapture();
3878 return 0;
3879 }
3880
3881
3882 static LRESULT
3883 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3884 {
3885 TREEVIEW_ITEM *wineItem;
3886 TVHITTESTINFO hit;
3887
3888 TRACE("\n");
3889 SetFocus(infoPtr->hwnd);
3890
3891 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3892 {
3893 /* If there is pending 'edit label' event - kill it now */
3894 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3895 }
3896
3897 hit.pt.x = (short)LOWORD(lParam);
3898 hit.pt.y = (short)HIWORD(lParam);
3899
3900 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3901 if (!wineItem)
3902 return 0;
3903 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3904
3905 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3906 { /* FIXME! */
3907 switch (hit.flags)
3908 {
3909 case TVHT_ONITEMRIGHT:
3910 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3911 break;
3912
3913 case TVHT_ONITEMINDENT:
3914 if (!(infoPtr->dwStyle & TVS_HASLINES))
3915 {
3916 break;
3917 }
3918 else
3919 {
3920 int level = hit.pt.x / infoPtr->uIndent;
3921 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3922
3923 while (wineItem->iLevel > level)
3924 {
3925 wineItem = wineItem->parent;
3926 }
3927
3928 /* fall through */
3929 }
3930
3931 case TVHT_ONITEMLABEL:
3932 case TVHT_ONITEMICON:
3933 case TVHT_ONITEMBUTTON:
3934 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3935 break;
3936
3937 case TVHT_ONITEMSTATEICON:
3938 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3939 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3940 else
3941 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3942 break;
3943 }
3944 }
3945 return TRUE;
3946 }
3947
3948
3949 static LRESULT
3950 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3951 {
3952 HWND hwnd = infoPtr->hwnd;
3953 TVHITTESTINFO ht;
3954 BOOL bTrack, bDoLabelEdit;
3955 HTREEITEM tempItem;
3956
3957 /* If Edit control is active - kill it and return.
3958 * The best way to do it is to set focus to itself.
3959 * Edit control subclassed procedure will automatically call
3960 * EndEditLabelNow.
3961 */
3962 if (infoPtr->hwndEdit)
3963 {
3964 SetFocus(hwnd);
3965 return 0;
3966 }
3967
3968 ht.pt.x = (short)LOWORD(lParam);
3969 ht.pt.y = (short)HIWORD(lParam);
3970
3971 TREEVIEW_HitTest(infoPtr, &ht);
3972 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3973
3974 /* update focusedItem and redraw both items */
3975 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3976 {
3977 infoPtr->focusedItem = ht.hItem;
3978 InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
3979
3980 if(infoPtr->selectedItem)
3981 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3982 }
3983
3984 bTrack = (ht.flags & TVHT_ONITEM)
3985 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3986
3987 /*
3988 * If the style allows editing and the node is already selected
3989 * and the click occurred on the item label...
3990 */
3991 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
3992 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
3993
3994 /* Send NM_CLICK right away */
3995 if (!bTrack)
3996 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
3997 goto setfocus;
3998
3999 if (ht.flags & TVHT_ONITEMBUTTON)
4000 {
4001 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4002 goto setfocus;
4003 }
4004 else if (bTrack)
4005 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4006 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4007 {
4008 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4009 infoPtr->dropItem = ht.hItem;
4010
4011 /* clean up focusedItem as we dragged and won't select this item */
4012 if(infoPtr->focusedItem)
4013 {
4014 /* refresh the item that was focused */
4015 tempItem = infoPtr->focusedItem;
4016 infoPtr->focusedItem = 0;
4017 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4018
4019 /* refresh the selected item to return the filled background */
4020 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4021 }
4022
4023 return 0;
4024 }
4025 }
4026
4027 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4028 goto setfocus;
4029
4030 if (bDoLabelEdit)
4031 {
4032 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4033 KillTimer(hwnd, TV_EDIT_TIMER);
4034
4035 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4036 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4037 }
4038 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4039 {
4040 /*
4041 * if we are TVS_SINGLEEXPAND then we want this single click to
4042 * do a bunch of things.
4043 */
4044 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4045 (infoPtr->hwndEdit == 0))
4046 {
4047 TREEVIEW_ITEM *SelItem;
4048
4049 /*
4050 * Send the notification
4051 */
4052 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4053
4054 /*
4055 * Close the previous selection all the way to the root
4056 * as long as the new selection is not a child
4057 */
4058 if((infoPtr->selectedItem)
4059 && (infoPtr->selectedItem != ht.hItem))
4060 {
4061 BOOL closeit = TRUE;
4062 SelItem = ht.hItem;
4063
4064 /* determine if the hitItem is a child of the currently selected item */
4065 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4066 {
4067 closeit = (SelItem != infoPtr->selectedItem);
4068 SelItem = SelItem->parent;
4069 }
4070
4071 if(closeit)
4072 {
4073 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4074 SelItem = infoPtr->selectedItem;
4075
4076 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4077 {
4078 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4079 SelItem = SelItem->parent;
4080 }
4081 }
4082 }
4083
4084 /*
4085 * Expand the current item
4086 */
4087 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4088 }
4089
4090 /* Select the current item */
4091 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4092 }
4093 else if (ht.flags & TVHT_ONITEMSTATEICON)
4094 {
4095 /* TVS_CHECKBOXES requires us to toggle the current state */
4096 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4097 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4098 }
4099
4100 setfocus:
4101 SetFocus(hwnd);
4102 return 0;
4103 }
4104
4105
4106 static LRESULT
4107 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4108 {
4109 TVHITTESTINFO ht;
4110
4111 if (infoPtr->hwndEdit)
4112 {
4113 SetFocus(infoPtr->hwnd);
4114 return 0;
4115 }
4116
4117 ht.pt.x = (short)LOWORD(lParam);
4118 ht.pt.y = (short)HIWORD(lParam);
4119
4120 TREEVIEW_HitTest(infoPtr, &ht);
4121
4122 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4123 {
4124 if (ht.hItem)
4125 {
4126 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4127 infoPtr->dropItem = ht.hItem;
4128 }
4129 }
4130 else
4131 {
4132 SetFocus(infoPtr->hwnd);
4133 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4134 }
4135
4136 return 0;
4137 }
4138
4139 static LRESULT
4140 TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
4141 {
4142 return 0;
4143 }
4144
4145
4146 static LRESULT
4147 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4148 {
4149 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4150 INT cx, cy;
4151 HDC hdc, htopdc;
4152 HWND hwtop;
4153 HBITMAP hbmp, hOldbmp;
4154 SIZE size;
4155 RECT rc;
4156 HFONT hOldFont;
4157
4158 TRACE("\n");
4159
4160 if (!(infoPtr->himlNormal))
4161 return 0;
4162
4163 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4164 return 0;
4165
4166 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4167
4168 hwtop = GetDesktopWindow();
4169 htopdc = GetDC(hwtop);
4170 hdc = CreateCompatibleDC(htopdc);
4171
4172 hOldFont = SelectObject(hdc, infoPtr->hFont);
4173 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4174 &size);
4175 TRACE("%ld %ld %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4176 strlenW(dragItem->pszText));
4177 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4178 hOldbmp = SelectObject(hdc, hbmp);
4179
4180 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4181 size.cx += cx;
4182 if (cy > size.cy)
4183 size.cy = cy;
4184
4185 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4186 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4187 ILD_NORMAL);
4188
4189 /*
4190 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4191 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4192 */
4193
4194 /* draw item text */
4195
4196 SetRect(&rc, cx, 0, size.cx, size.cy);
4197 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4198 DT_LEFT);
4199 SelectObject(hdc, hOldFont);
4200 SelectObject(hdc, hOldbmp);
4201
4202 ImageList_Add(infoPtr->dragList, hbmp, 0);
4203
4204 DeleteDC(hdc);
4205 DeleteObject(hbmp);
4206 ReleaseDC(hwtop, htopdc);
4207
4208 return (LRESULT)infoPtr->dragList;
4209 }
4210
4211 /* Selection ************************************************************/
4212
4213 static LRESULT
4214 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4215 INT cause)
4216 {
4217 TREEVIEW_ITEM *prevSelect;
4218 RECT rcFocused;
4219
4220 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4221
4222 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4223 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4224 newSelect ? newSelect->state : 0);
4225
4226 /* reset and redraw focusedItem if focusedItem was set so we don't */
4227 /* have to worry about the previously focused item when we set a new one */
4228 if(infoPtr->focusedItem)
4229 {
4230 rcFocused = (infoPtr->focusedItem)->rect;
4231 infoPtr->focusedItem = 0;
4232 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4233 }
4234
4235 switch (action)
4236 {
4237 case TVGN_CARET:
4238 prevSelect = infoPtr->selectedItem;
4239
4240 if (prevSelect == newSelect) {
4241 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4242 break;
4243 }
4244
4245 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4246 TVN_SELCHANGINGW,
4247 cause,
4248 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4249 prevSelect,
4250 newSelect))
4251 return FALSE;
4252
4253 if (prevSelect)
4254 prevSelect->state &= ~TVIS_SELECTED;
4255 if (newSelect)
4256 newSelect->state |= TVIS_SELECTED;
4257
4258 infoPtr->selectedItem = newSelect;
4259
4260 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4261
4262 if (prevSelect)
4263 TREEVIEW_Invalidate(infoPtr, prevSelect);
4264 if (newSelect)
4265 TREEVIEW_Invalidate(infoPtr, newSelect);
4266
4267 TREEVIEW_SendTreeviewNotify(infoPtr,
4268 TVN_SELCHANGEDW,
4269 cause,
4270 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4271 prevSelect,
4272 newSelect);
4273 break;
4274
4275 case TVGN_DROPHILITE:
4276 prevSelect = infoPtr->dropItem;
4277
4278 if (prevSelect)
4279 prevSelect->state &= ~TVIS_DROPHILITED;
4280
4281 infoPtr->dropItem = newSelect;
4282
4283 if (newSelect)
4284 newSelect->state |= TVIS_DROPHILITED;
4285
4286 TREEVIEW_Invalidate(infoPtr, prevSelect);
4287 TREEVIEW_Invalidate(infoPtr, newSelect);
4288 break;
4289
4290 case TVGN_FIRSTVISIBLE:
4291 if (newSelect != NULL)
4292 {
4293 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4294 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4295 TREEVIEW_Invalidate(infoPtr, NULL);
4296 }
4297 break;
4298 }
4299
4300 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4301 return TRUE;
4302 }
4303
4304 /* FIXME: handle NM_KILLFOCUS etc */
4305 static LRESULT
4306 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4307 {
4308 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4309 return FALSE;
4310
4311 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4312
4313 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4314 return FALSE;
4315
4316 return TRUE;
4317 }
4318
4319 /*************************************************************************
4320 * TREEVIEW_ProcessLetterKeys
4321 *
4322 * Processes keyboard messages generated by pressing the letter keys
4323 * on the keyboard.
4324 * What this does is perform a case insensitive search from the
4325 * current position with the following quirks:
4326 * - If two chars or more are pressed in quick succession we search
4327 * for the corresponding string (e.g. 'abc').
4328 * - If there is a delay we wipe away the current search string and
4329 * restart with just that char.
4330 * - If the user keeps pressing the same character, whether slowly or
4331 * fast, so that the search string is entirely composed of this
4332 * character ('aaaaa' for instance), then we search for first item
4333 * that starting with that character.
4334 * - If the user types the above character in quick succession, then
4335 * we must also search for the corresponding string ('aaaaa'), and
4336 * go to that string if there is a match.
4337 *
4338 * RETURNS
4339 *
4340 * Zero.
4341 *
4342 * BUGS
4343 *
4344 * - The current implementation has a list of characters it will
4345 * accept and it ignores averything else. In particular it will
4346 * ignore accentuated characters which seems to match what
4347 * Windows does. But I'm not sure it makes sense to follow
4348 * Windows there.
4349 * - We don't sound a beep when the search fails.
4350 * - The search should start from the focused item, not from the selected
4351 * item. One reason for this is to allow for multiple selections in trees.
4352 * But currently infoPtr->focusedItem does not seem very usable.
4353 *
4354 * SEE ALSO
4355 *
4356 * TREEVIEW_ProcessLetterKeys
4357 */
4358 static INT TREEVIEW_ProcessLetterKeys(
4359 HWND hwnd, /* handle to the window */
4360 WPARAM charCode, /* the character code, the actual character */
4361 LPARAM keyData /* key data */
4362 )
4363 {
4364 TREEVIEW_INFO *infoPtr;
4365 HTREEITEM nItem;
4366 HTREEITEM endidx,idx;
4367 TVITEMEXW item;
4368 WCHAR buffer[MAX_PATH];
4369 DWORD timestamp,elapsed;
4370
4371 /* simple parameter checking */
4372 if (!hwnd || !charCode || !keyData)
4373 return 0;
4374
4375 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4376 if (!infoPtr)
4377 return 0;
4378
4379 /* only allow the valid WM_CHARs through */
4380 if (!isalnum(charCode) &&
4381 charCode != '.' && charCode != '`' && charCode != '!' &&
4382 charCode != '@' && charCode != '#' && charCode != '$' &&
4383 charCode != '%' && charCode != '^' && charCode != '&' &&
4384 charCode != '*' && charCode != '(' && charCode != ')' &&
4385 charCode != '-' && charCode != '_' && charCode != '+' &&
4386 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4387 charCode != '}' && charCode != '[' && charCode != '{' &&
4388 charCode != '/' && charCode != '?' && charCode != '>' &&
4389 charCode != '<' && charCode != ',' && charCode != '~')
4390 return 0;
4391
4392 /* compute how much time elapsed since last keypress */
4393 timestamp = GetTickCount();
4394 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4395 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4396 } else {
4397 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4398 }
4399
4400 /* update the search parameters */
4401 infoPtr->lastKeyPressTimestamp=timestamp;
4402 if (elapsed < KEY_DELAY) {
4403 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4404 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4405 }
4406 if (infoPtr->charCode != charCode) {
4407 infoPtr->charCode=charCode=0;
4408 }
4409 } else {
4410 infoPtr->charCode=charCode;
4411 infoPtr->szSearchParam[0]=charCode;
4412 infoPtr->nSearchParamLength=1;
4413 /* Redundant with the 1 char string */
4414 charCode=0;
4415 }
4416
4417 /* and search from the current position */
4418 nItem=NULL;
4419 if (infoPtr->selectedItem != NULL) {
4420 endidx=infoPtr->selectedItem;
4421 /* if looking for single character match,
4422 * then we must always move forward
4423 */
4424 if (infoPtr->nSearchParamLength == 1)
4425 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4426 else
4427 idx=endidx;
4428 } else {
4429 endidx=NULL;
4430 idx=infoPtr->root->firstChild;
4431 }
4432 do {
4433 /* At the end point, sort out wrapping */
4434 if (idx == NULL) {
4435
4436 /* If endidx is null, stop at the last item (ie top to bottom) */
4437 if (endidx == NULL)
4438 break;
4439
4440 /* Otherwise, start again at the very beginning */
4441 idx=infoPtr->root->firstChild;
4442
4443 /* But if we are stopping on the first child, end now! */
4444 if (idx == endidx) break;
4445 }
4446
4447 /* get item */
4448 ZeroMemory(&item, sizeof(item));
4449 item.mask = TVIF_TEXT;
4450 item.hItem = idx;
4451 item.pszText = buffer;
4452 item.cchTextMax = sizeof(buffer);
4453 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4454
4455 /* check for a match */
4456 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4457 nItem=idx;
4458 break;
4459 } else if ( (charCode != 0) && (nItem == NULL) &&
4460 (nItem != infoPtr->selectedItem) &&
4461 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4462 /* This would work but we must keep looking for a longer match */
4463 nItem=idx;
4464 }
4465 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4466 } while (idx != endidx);
4467
4468 if (nItem != NULL) {
4469 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4470 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4471 }
4472 }
4473
4474 return 0;
4475 }
4476
4477 /* Scrolling ************************************************************/
4478
4479 static LRESULT
4480 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4481 {
4482 int viscount;
4483 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4484 HTREEITEM newFirstVisible = NULL;
4485 int visible_pos = -1;
4486
4487 if (!TREEVIEW_ValidItem(infoPtr, item))
4488 return FALSE;
4489
4490 if (!ISVISIBLE(item))
4491 {
4492 /* Expand parents as necessary. */
4493 HTREEITEM parent;
4494
4495 /* see if we are trying to ensure that root is vislble */
4496 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4497 parent = item->parent;
4498 else
4499 parent = item; /* this item is the topmost item */
4500
4501 while (parent != infoPtr->root)
4502 {
4503 if (!(parent->state & TVIS_EXPANDED))
4504 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4505
4506 parent = parent->parent;
4507 }
4508 }
4509
4510 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4511
4512 TRACE("%p (%s) %ld - %ld viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4513 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4514
4515 if (hasFirstVisible)
4516 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4517
4518 if (visible_pos < 0)
4519 {
4520 /* item is before the start of the list: put it at the top. */
4521 newFirstVisible = item;
4522 }
4523 else if (visible_pos >= viscount
4524 /* Sometimes, before we are displayed, GVC is 0, causing us to
4525 * spuriously scroll up. */
4526 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4527 {
4528 /* item is past the end of the list. */
4529 int scroll = visible_pos - viscount;
4530
4531 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4532 scroll + 1);
4533 }
4534
4535 if (bHScroll)
4536 {
4537 /* Scroll window so item's text is visible as much as possible */
4538 /* Calculation of amount of extra space is taken from EditLabel code */
4539 INT pos, x;
4540 TEXTMETRICW textMetric;
4541 HDC hdc = GetWindowDC(infoPtr->hwnd);
4542
4543 x = item->textWidth;
4544
4545 GetTextMetricsW(hdc, &textMetric);
4546 ReleaseDC(infoPtr->hwnd, hdc);
4547
4548 x += (textMetric.tmMaxCharWidth * 2);
4549 x = max(x, textMetric.tmMaxCharWidth * 3);
4550
4551 if (item->textOffset < 0)
4552 pos = item->textOffset;
4553 else if (item->textOffset + x > infoPtr->clientWidth)
4554 {
4555 if (x > infoPtr->clientWidth)
4556 pos = item->textOffset;
4557 else
4558 pos = item->textOffset + x - infoPtr->clientWidth;
4559 }
4560 else
4561 pos = 0;
4562
4563 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4564 }
4565
4566 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4567 {
4568 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4569
4570 return TRUE;
4571 }
4572
4573 return FALSE;
4574 }
4575
4576 static VOID
4577 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4578 TREEVIEW_ITEM *newFirstVisible,
4579 BOOL bUpdateScrollPos)
4580 {
4581 int gap_size;
4582
4583 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4584
4585 if (newFirstVisible != NULL)
4586 {
4587 /* Prevent an empty gap from appearing at the bottom... */
4588 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4589 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4590
4591 if (gap_size > 0)
4592 {
4593 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4594 -gap_size);
4595
4596 /* ... unless we just don't have enough items. */
4597 if (newFirstVisible == NULL)
4598 newFirstVisible = infoPtr->root->firstChild;
4599 }
4600 }
4601
4602 if (infoPtr->firstVisible != newFirstVisible)
4603 {
4604 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4605 {
4606 infoPtr->firstVisible = newFirstVisible;
4607 TREEVIEW_Invalidate(infoPtr, NULL);
4608 }
4609 else
4610 {
4611 TREEVIEW_ITEM *item;
4612 int scroll = infoPtr->uItemHeight *
4613 (infoPtr->firstVisible->visibleOrder
4614 - newFirstVisible->visibleOrder);
4615
4616 infoPtr->firstVisible = newFirstVisible;
4617
4618 for (item = infoPtr->root->firstChild; item != NULL;
4619 item = TREEVIEW_GetNextListItem(infoPtr, item))
4620 {
4621 item->rect.top += scroll;
4622 item->rect.bottom += scroll;
4623 }
4624
4625 if (bUpdateScrollPos)
4626 SetScrollPos(infoPtr->hwnd, SB_VERT,
4627 newFirstVisible->visibleOrder, TRUE);
4628
4629 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4630 }
4631 }
4632 }
4633
4634 /************************************************************************
4635 * VScroll is always in units of visible items. i.e. we always have a
4636 * visible item aligned to the top of the control. (Unless we have no
4637 * items at all.)
4638 */
4639 static LRESULT
4640 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4641 {
4642 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4643 TREEVIEW_ITEM *newFirstVisible = NULL;
4644
4645 int nScrollCode = LOWORD(wParam);
4646
4647 TRACE("wp %x\n", wParam);
4648
4649 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4650 return 0;
4651
4652 if (infoPtr->hwndEdit)
4653 SetFocus(infoPtr->hwnd);
4654
4655 if (!oldFirstVisible)
4656 {
4657 assert(infoPtr->root->firstChild == NULL);
4658 return 0;
4659 }
4660
4661 switch (nScrollCode)
4662 {
4663 case SB_TOP:
4664 newFirstVisible = infoPtr->root->firstChild;
4665 break;
4666
4667 case SB_BOTTOM:
4668 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4669 break;
4670
4671 case SB_LINEUP:
4672 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4673 break;
4674
4675 case SB_LINEDOWN:
4676 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4677 break;
4678
4679 case SB_PAGEUP:
4680 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4681 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4682 break;
4683
4684 case SB_PAGEDOWN:
4685 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4686 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4687 break;
4688
4689 case SB_THUMBTRACK:
4690 case SB_THUMBPOSITION:
4691 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4692 infoPtr->root->firstChild,
4693 (LONG)(SHORT)HIWORD(wParam));
4694 break;
4695
4696 case SB_ENDSCROLL:
4697 return 0;
4698 }
4699
4700 if (newFirstVisible != NULL)
4701 {
4702 if (newFirstVisible != oldFirstVisible)
4703 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4704 nScrollCode != SB_THUMBTRACK);
4705 else if (nScrollCode == SB_THUMBPOSITION)
4706 SetScrollPos(infoPtr->hwnd, SB_VERT,
4707 newFirstVisible->visibleOrder, TRUE);
4708 }
4709
4710 return 0;
4711 }
4712
4713 static LRESULT
4714 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4715 {
4716 int maxWidth;
4717 int scrollX = infoPtr->scrollX;
4718 int nScrollCode = LOWORD(wParam);
4719
4720 TRACE("wp %x\n", wParam);
4721
4722 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4723 return FALSE;
4724
4725 if (infoPtr->hwndEdit)
4726 SetFocus(infoPtr->hwnd);
4727
4728 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4729 /* shall never occur */
4730 if (maxWidth <= 0)
4731 {
4732 scrollX = 0;
4733 goto scroll;
4734 }
4735
4736 switch (nScrollCode)
4737 {
4738 case SB_LINELEFT:
4739 scrollX -= infoPtr->uItemHeight;
4740 break;
4741 case SB_LINERIGHT:
4742 scrollX += infoPtr->uItemHeight;
4743 break;
4744 case SB_PAGELEFT:
4745 scrollX -= infoPtr->clientWidth;
4746 break;
4747 case SB_PAGERIGHT:
4748 scrollX += infoPtr->clientWidth;
4749 break;
4750
4751 case SB_THUMBTRACK:
4752 case SB_THUMBPOSITION:
4753 scrollX = (int)(SHORT)HIWORD(wParam);
4754 break;
4755
4756 case SB_ENDSCROLL:
4757 return 0;
4758 }
4759
4760 if (scrollX > maxWidth)
4761 scrollX = maxWidth;
4762 else if (scrollX < 0)
4763 scrollX = 0;
4764
4765 scroll:
4766 if (scrollX != infoPtr->scrollX)
4767 {
4768 TREEVIEW_ITEM *item;
4769 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4770
4771 for (item = infoPtr->root->firstChild; item != NULL;
4772 item = TREEVIEW_GetNextListItem(infoPtr, item))
4773 {
4774 item->linesOffset += scroll_pixels;
4775 item->stateOffset += scroll_pixels;
4776 item->imageOffset += scroll_pixels;
4777 item->textOffset += scroll_pixels;
4778 }
4779
4780 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4781 infoPtr->scrollX = scrollX;
4782 UpdateWindow(infoPtr->hwnd);
4783 }
4784
4785 if (nScrollCode != SB_THUMBTRACK)
4786 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4787
4788 return 0;
4789 }
4790
4791 static LRESULT
4792 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4793 {
4794 short gcWheelDelta;
4795 UINT pulScrollLines = 3;
4796
4797 if (infoPtr->firstVisible == NULL)
4798 return TRUE;
4799
4800 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4801
4802 gcWheelDelta = -(short)HIWORD(wParam);
4803 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4804
4805 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4806 {
4807 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4808 int maxDy = infoPtr->maxVisibleOrder;
4809
4810 if (newDy > maxDy)
4811 newDy = maxDy;
4812
4813 if (newDy < 0)
4814 newDy = 0;
4815
4816 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4817 }
4818 return TRUE;
4819 }
4820
4821 /* Create/Destroy *******************************************************/
4822
4823 static LRESULT
4824 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4825 {
4826 static const WCHAR szDisplayW[] = { 'D','I','S','P','L','A','Y','\0' };
4827 RECT rcClient;
4828 TREEVIEW_INFO *infoPtr;
4829 LOGFONTW lf;
4830
4831 TRACE("wnd %p, style %lx\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4832
4833 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4834
4835 if (infoPtr == NULL)
4836 {
4837 ERR("could not allocate info memory!\n");
4838 return 0;
4839 }
4840
4841 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4842
4843 infoPtr->hwnd = hwnd;
4844 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4845 infoPtr->Timer = 0;
4846 infoPtr->uNumItems = 0;
4847 infoPtr->cdmode = 0;
4848 infoPtr->uScrollTime = 300; /* milliseconds */
4849 infoPtr->bRedraw = TRUE;
4850
4851 GetClientRect(hwnd, &rcClient);
4852
4853 /* No scroll bars yet. */
4854 infoPtr->clientWidth = rcClient.right;
4855 infoPtr->clientHeight = rcClient.bottom;
4856 infoPtr->uInternalStatus = 0;
4857
4858 infoPtr->treeWidth = 0;
4859 infoPtr->treeHeight = 0;
4860
4861 infoPtr->uIndent = MINIMUM_INDENT;
4862 infoPtr->selectedItem = 0;
4863 infoPtr->focusedItem = 0;
4864 infoPtr->hotItem = 0;
4865 infoPtr->firstVisible = 0;
4866 infoPtr->maxVisibleOrder = 0;
4867 infoPtr->dropItem = 0;
4868 infoPtr->insertMarkItem = 0;
4869 infoPtr->insertBeforeorAfter = 0;
4870 /* dragList */
4871
4872 infoPtr->scrollX = 0;
4873
4874 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4875 infoPtr->clrText = -1; /* use system color */
4876 infoPtr->clrLine = RGB(128, 128, 128);
4877 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4878
4879 /* hwndToolTip */
4880
4881 infoPtr->hwndEdit = 0;
4882 infoPtr->wpEditOrig = NULL;
4883 infoPtr->bIgnoreEditKillFocus = FALSE;
4884 infoPtr->bLabelChanged = FALSE;
4885
4886 infoPtr->himlNormal = NULL;
4887 infoPtr->himlState = NULL;
4888 infoPtr->normalImageWidth = 0;
4889 infoPtr->normalImageHeight = 0;
4890 infoPtr->stateImageWidth = 0;
4891 infoPtr->stateImageHeight = 0;
4892
4893 infoPtr->items = DPA_Create(16);
4894
4895 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4896 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4897 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4898 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4899 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4900
4901 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4902
4903 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4904 infoPtr->root->state = TVIS_EXPANDED;
4905 infoPtr->root->iLevel = -1;
4906 infoPtr->root->visibleOrder = -1;
4907
4908 infoPtr->hwndNotify = lpcs->hwndParent;
4909 #if 0
4910 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4911 #endif
4912
4913 infoPtr->hwndToolTip = 0;
4914
4915 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4916
4917 /* Determine what type of notify should be issued */
4918 /* sets infoPtr->bNtfUnicode */
4919 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4920
4921 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4922 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
4923
4924 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4925 {
4926 RECT rc;
4927 HBITMAP hbm, hbmOld;
4928 HDC hdc,hdcScreen;
4929 int nIndex;
4930
4931 infoPtr->himlState =
4932 ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4933
4934 hdcScreen = CreateDCW(szDisplayW, NULL, NULL, NULL);
4935
4936 /* Create a coloured bitmap compatible with the screen depth
4937 because checkboxes are not black&white */
4938 hdc = CreateCompatibleDC(hdcScreen);
4939 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4940 hbmOld = SelectObject(hdc, hbm);
4941
4942 rc.left = 0; rc.top = 0;
4943 rc.right = 48; rc.bottom = 16;
4944 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4945
4946 rc.left = 18; rc.top = 2;
4947 rc.right = 30; rc.bottom = 14;
4948 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4949 DFCS_BUTTONCHECK|DFCS_FLAT);
4950
4951 rc.left = 34; rc.right = 46;
4952 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4953 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4954
4955 SelectObject(hdc, hbmOld);
4956 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4957 GetSysColor(COLOR_WINDOW));
4958 TRACE("checkbox index %d\n", nIndex);
4959
4960 DeleteObject(hbm);
4961 DeleteDC(hdc);
4962 DeleteDC(hdcScreen);
4963
4964 infoPtr->stateImageWidth = 16;
4965 infoPtr->stateImageHeight = 16;
4966 }
4967
4968 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4969 ShowScrollBar(hwnd, SB_VERT, FALSE);
4970 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4971
4972 OpenThemeData (hwnd, themeClass);
4973
4974 return 0;
4975 }
4976
4977
4978 static LRESULT
4979 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4980 {
4981 TRACE("\n");
4982
4983 TREEVIEW_RemoveTree(infoPtr);
4984
4985 /* tool tip is automatically destroyed: we are its owner */
4986
4987 /* Restore original wndproc */
4988 if (infoPtr->hwndEdit)
4989 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
4990 (DWORD_PTR)infoPtr->wpEditOrig);
4991
4992 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
4993
4994 /* Deassociate treeview from the window before doing anything drastic. */
4995 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
4996
4997
4998 DeleteObject(infoPtr->hDefaultFont);
4999 DeleteObject(infoPtr->hBoldFont);
5000 DeleteObject(infoPtr->hUnderlineFont);
5001 Free(infoPtr);
5002
5003 return 0;
5004 }
5005
5006 /* Miscellaneous Messages ***********************************************/
5007
5008 static LRESULT
5009 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5010 {
5011 static const struct
5012 {
5013 unsigned char code;
5014 }
5015 scroll[] =
5016 {
5017 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5018 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5019 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5020 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5021 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5022 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5023 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5024 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5025 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5026 #undef SCROLL_ENTRY
5027 };
5028
5029 if (key >= VK_PRIOR && key <= VK_DOWN)
5030 {
5031 unsigned char code = scroll[key - VK_PRIOR].code;
5032
5033 (((code & (1 << 7)) == (SB_HORZ << 7))
5034 ? TREEVIEW_HScroll
5035 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5036 }
5037
5038 return 0;
5039 }
5040
5041 /************************************************************************
5042 * TREEVIEW_KeyDown
5043 *
5044 * VK_UP Move selection to the previous non-hidden item.
5045 * VK_DOWN Move selection to the next non-hidden item.
5046 * VK_HOME Move selection to the first item.
5047 * VK_END Move selection to the last item.
5048 * VK_LEFT If expanded then collapse, otherwise move to parent.
5049 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5050 * VK_ADD Expand.
5051 * VK_SUBTRACT Collapse.
5052 * VK_MULTIPLY Expand all.
5053 * VK_PRIOR Move up GetVisibleCount items.
5054 * VK_NEXT Move down GetVisibleCount items.
5055 * VK_BACK Move to parent.
5056 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5057 */
5058 static LRESULT
5059 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5060 {
5061 /* If it is non-NULL and different, it will be selected and visible. */
5062 TREEVIEW_ITEM *newSelection = NULL;
5063
5064 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5065
5066 TRACE("%x\n", wParam);
5067
5068 if (prevItem == NULL)
5069 return FALSE;
5070
5071 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5072 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5073
5074 switch (wParam)
5075 {
5076 case VK_UP:
5077 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5078 if (!newSelection)
5079 newSelection = infoPtr->root->firstChild;
5080 break;
5081
5082 case VK_DOWN:
5083 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5084 break;
5085
5086 case VK_HOME:
5087 newSelection = infoPtr->root->firstChild;
5088 break;
5089
5090 case VK_END:
5091 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5092 break;
5093
5094 case VK_LEFT:
5095 if (prevItem->state & TVIS_EXPANDED)
5096 {
5097 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5098 }
5099 else if (prevItem->parent != infoPtr->root)
5100 {
5101 newSelection = prevItem->parent;
5102 }
5103 break;
5104
5105 case VK_RIGHT:
5106 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5107 {
5108 if (!(prevItem->state & TVIS_EXPANDED))
5109 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5110 else
5111 {
5112 newSelection = prevItem->firstChild;
5113 }
5114 }
5115
5116 break;
5117
5118 case VK_MULTIPLY:
5119 TREEVIEW_ExpandAll(infoPtr, prevItem);
5120 break;
5121
5122 case VK_ADD:
5123 if (!(prevItem->state & TVIS_EXPANDED))
5124 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5125 break;
5126
5127 case VK_SUBTRACT:
5128 if (prevItem->state & TVIS_EXPANDED)
5129 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5130 break;
5131
5132 case VK_PRIOR:
5133 newSelection
5134 = TREEVIEW_GetListItem(infoPtr, prevItem,
5135 -TREEVIEW_GetVisibleCount(infoPtr));
5136 break;
5137
5138 case VK_NEXT:
5139 newSelection
5140 = TREEVIEW_GetListItem(infoPtr, prevItem,
5141 TREEVIEW_GetVisibleCount(infoPtr));
5142 break;
5143
5144 case VK_BACK:
5145 newSelection = prevItem->parent;
5146 if (newSelection == infoPtr->root)
5147 newSelection = NULL;
5148 break;
5149
5150 case VK_SPACE:
5151 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5152 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5153 break;
5154 }
5155
5156 if (newSelection && newSelection != prevItem)
5157 {
5158 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5159 TVC_BYKEYBOARD))
5160 {
5161 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5162 }
5163 }
5164
5165 return FALSE;
5166 }
5167
5168 static LRESULT
5169 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5170 {
5171 if (infoPtr->hotItem)
5172 {
5173 /* remove hot effect from item */
5174 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5175 infoPtr->hotItem = NULL;
5176 }
5177 return 0;
5178 }
5179
5180 static LRESULT
5181 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5182 {
5183 POINT pt;
5184 TRACKMOUSEEVENT trackinfo;
5185 TREEVIEW_ITEM * item;
5186
5187 /* fill in the TRACKMOUSEEVENT struct */
5188 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5189 trackinfo.dwFlags = TME_QUERY;
5190 trackinfo.hwndTrack = infoPtr->hwnd;
5191 trackinfo.dwHoverTime = HOVER_DEFAULT;
5192
5193 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5194 _TrackMouseEvent(&trackinfo);
5195
5196 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5197 if(!(trackinfo.dwFlags & TME_LEAVE))
5198 {
5199 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5200
5201 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5202 /* and can properly deactivate the hot item */
5203 _TrackMouseEvent(&trackinfo);
5204 }
5205
5206 pt.x = (INT)LOWORD(lParam);
5207 pt.y = (INT)HIWORD(lParam);
5208
5209 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5210
5211 if (item != infoPtr->hotItem)
5212 {
5213 /* redraw old hot item */
5214 if (infoPtr->hotItem)
5215 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5216 infoPtr->hotItem = item;
5217 /* redraw new hot item */
5218 if (infoPtr->hotItem)
5219 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5220 }
5221
5222 return 0;
5223 }
5224
5225 /* Draw themed border */
5226 static BOOL nc_paint (TREEVIEW_INFO *infoPtr, HRGN region)
5227 {
5228 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5229 HDC dc;
5230 RECT r;
5231 HRGN cliprgn;
5232 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5233 cyEdge = GetSystemMetrics (SM_CYEDGE);
5234
5235 if (!theme) return FALSE;
5236
5237 GetWindowRect(infoPtr->hwnd, &r);
5238
5239 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5240 r.right - cxEdge, r.bottom - cyEdge);
5241 if (region != (HRGN)1)
5242 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5243 OffsetRect(&r, -r.left, -r.top);
5244
5245 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5246 OffsetRect(&r, -r.left, -r.top);
5247
5248 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5249 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5250 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5251 ReleaseDC(infoPtr->hwnd, dc);
5252
5253 /* Call default proc to get the scrollbars etc. painted */
5254 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5255
5256 return TRUE;
5257 }
5258
5259 static LRESULT
5260 TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5261 {
5262 LPNMHDR lpnmh = (LPNMHDR)lParam;
5263
5264 if (lpnmh->code == PGN_CALCSIZE) {
5265 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5266
5267 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5268 lppgc->iWidth = infoPtr->treeWidth;
5269 TRACE("got PGN_CALCSIZE, returning horz size = %ld, client=%ld\n",
5270 infoPtr->treeWidth, infoPtr->clientWidth);
5271 }
5272 else {
5273 lppgc->iHeight = infoPtr->treeHeight;
5274 TRACE("got PGN_CALCSIZE, returning vert size = %ld, client=%ld\n",
5275 infoPtr->treeHeight, infoPtr->clientHeight);
5276 }
5277 return 0;
5278 }
5279 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5280 }
5281
5282 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5283 {
5284 INT format;
5285
5286 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5287
5288 if (nCommand != NF_REQUERY) return 0;
5289
5290 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5291 TRACE("format=%d\n", format);
5292
5293 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5294
5295 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5296
5297 return format;
5298 }
5299
5300 static LRESULT
5301 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5302 {
5303 if (wParam == SIZE_RESTORED)
5304 {
5305 infoPtr->clientWidth = (short)LOWORD(lParam);
5306 infoPtr->clientHeight = (short)HIWORD(lParam);
5307
5308 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5309 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5310 TREEVIEW_UpdateScrollBars(infoPtr);
5311 }
5312 else
5313 {
5314 FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
5315 }
5316
5317 TREEVIEW_Invalidate(infoPtr, NULL);
5318 return 0;
5319 }
5320
5321 static LRESULT
5322 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5323 {
5324 TRACE("(%x %lx)\n", wParam, lParam);
5325
5326 if (wParam == GWL_STYLE)
5327 {
5328 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5329
5330 /* we have to take special care about tooltips */
5331 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5332 {
5333 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5334 {
5335 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5336 TRACE("\n");
5337 }
5338 else
5339 {
5340 DestroyWindow(infoPtr->hwndToolTip);
5341 infoPtr->hwndToolTip = 0;
5342 }
5343 }
5344
5345 infoPtr->dwStyle = dwNewStyle;
5346 }
5347
5348 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5349 TREEVIEW_UpdateScrollBars(infoPtr);
5350 TREEVIEW_Invalidate(infoPtr, NULL);
5351
5352 return 0;
5353 }
5354
5355 static LRESULT
5356 TREEVIEW_SetCursor(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5357 {
5358 POINT pt;
5359 TREEVIEW_ITEM * item;
5360
5361 GetCursorPos(&pt);
5362 ScreenToClient(infoPtr->hwnd, &pt);
5363
5364 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5365
5366 /* FIXME: send NM_SETCURSOR */
5367
5368 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5369 {
5370 SetCursor(infoPtr->hcurHand);
5371 return 0;
5372 }
5373 else
5374 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5375 }
5376
5377 static LRESULT
5378 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5379 {
5380 TRACE("\n");
5381
5382 if (!infoPtr->selectedItem)
5383 {
5384 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5385 TVC_UNKNOWN);
5386 }
5387
5388 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5389 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5390 return 0;
5391 }
5392
5393 static LRESULT
5394 TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
5395 {
5396 TRACE("\n");
5397
5398 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5399 UpdateWindow(infoPtr->hwnd);
5400 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5401 return 0;
5402 }
5403
5404 /* update theme after a WM_THEMECHANGED message */
5405 static LRESULT theme_changed (TREEVIEW_INFO* infoPtr)
5406 {
5407 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5408 CloseThemeData (theme);
5409 OpenThemeData (infoPtr->hwnd, themeClass);
5410 return 0;
5411 }
5412
5413
5414 static LRESULT WINAPI
5415 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5416 {
5417 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5418
5419 TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5420
5421 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5422 else
5423 {
5424 if (uMsg == WM_CREATE)
5425 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5426 else
5427 goto def;
5428 }
5429
5430 switch (uMsg)
5431 {
5432 case TVM_CREATEDRAGIMAGE:
5433 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5434
5435 case TVM_DELETEITEM:
5436 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5437
5438 case TVM_EDITLABELA:
5439 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5440
5441 case TVM_EDITLABELW:
5442 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5443
5444 case TVM_ENDEDITLABELNOW:
5445 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5446
5447 case TVM_ENSUREVISIBLE:
5448 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5449
5450 case TVM_EXPAND:
5451 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5452
5453 case TVM_GETBKCOLOR:
5454 return TREEVIEW_GetBkColor(infoPtr);
5455
5456 case TVM_GETCOUNT:
5457 return TREEVIEW_GetCount(infoPtr);
5458
5459 case TVM_GETEDITCONTROL:
5460 return TREEVIEW_GetEditControl(infoPtr);
5461
5462 case TVM_GETIMAGELIST:
5463 return TREEVIEW_GetImageList(infoPtr, wParam);
5464
5465 case TVM_GETINDENT:
5466 return TREEVIEW_GetIndent(infoPtr);
5467
5468 case TVM_GETINSERTMARKCOLOR:
5469 return TREEVIEW_GetInsertMarkColor(infoPtr);
5470
5471 case TVM_GETISEARCHSTRINGA:
5472 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5473 return 0;
5474
5475 case TVM_GETISEARCHSTRINGW:
5476 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5477 return 0;
5478
5479 case TVM_GETITEMA:
5480 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5481
5482 case TVM_GETITEMW:
5483 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5484
5485 case TVM_GETITEMHEIGHT:
5486 return TREEVIEW_GetItemHeight(infoPtr);
5487
5488 case TVM_GETITEMRECT:
5489 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5490
5491 case TVM_GETITEMSTATE:
5492 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5493
5494 case TVM_GETLINECOLOR:
5495 return TREEVIEW_GetLineColor(infoPtr);
5496
5497 case TVM_GETNEXTITEM:
5498 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5499
5500 case TVM_GETSCROLLTIME:
5501 return TREEVIEW_GetScrollTime(infoPtr);
5502
5503 case TVM_GETTEXTCOLOR:
5504 return TREEVIEW_GetTextColor(infoPtr);
5505
5506 case TVM_GETTOOLTIPS:
5507 return TREEVIEW_GetToolTips(infoPtr);
5508
5509 case TVM_GETUNICODEFORMAT:
5510 return TREEVIEW_GetUnicodeFormat(infoPtr);
5511
5512 case TVM_GETVISIBLECOUNT:
5513 return TREEVIEW_GetVisibleCount(infoPtr);
5514
5515 case TVM_HITTEST:
5516 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5517
5518 case TVM_INSERTITEMA:
5519 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5520
5521 case TVM_INSERTITEMW:
5522 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5523
5524 case TVM_SELECTITEM:
5525 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5526
5527 case TVM_SETBKCOLOR:
5528 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5529
5530 case TVM_SETIMAGELIST:
5531 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5532
5533 case TVM_SETINDENT:
5534 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5535
5536 case TVM_SETINSERTMARK:
5537 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5538
5539 case TVM_SETINSERTMARKCOLOR:
5540 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5541
5542 case TVM_SETITEMA:
5543 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5544
5545 case TVM_SETITEMW:
5546 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5547
5548 case TVM_SETLINECOLOR:
5549 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5550
5551 case TVM_SETITEMHEIGHT:
5552 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5553
5554 case TVM_SETSCROLLTIME:
5555 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5556
5557 case TVM_SETTEXTCOLOR:
5558 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5559
5560 case TVM_SETTOOLTIPS:
5561 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5562
5563 case TVM_SETUNICODEFORMAT:
5564 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5565
5566 case TVM_SORTCHILDREN:
5567 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5568
5569 case TVM_SORTCHILDRENCB:
5570 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5571
5572 case WM_CHAR:
5573 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5574
5575 case WM_COMMAND:
5576 return TREEVIEW_Command(infoPtr, wParam, lParam);
5577
5578 case WM_DESTROY:
5579 return TREEVIEW_Destroy(infoPtr);
5580
5581 /* WM_ENABLE */
5582
5583 case WM_ERASEBKGND:
5584 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5585
5586 case WM_GETDLGCODE:
5587 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5588
5589 case WM_GETFONT:
5590 return TREEVIEW_GetFont(infoPtr);
5591
5592 case WM_HSCROLL:
5593 return TREEVIEW_HScroll(infoPtr, wParam);
5594
5595 case WM_KEYDOWN:
5596 return TREEVIEW_KeyDown(infoPtr, wParam);
5597
5598 case WM_KILLFOCUS:
5599 return TREEVIEW_KillFocus(infoPtr);
5600
5601 case WM_LBUTTONDBLCLK:
5602 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5603
5604 case WM_LBUTTONDOWN:
5605 return TREEVIEW_LButtonDown(infoPtr, lParam);
5606
5607 /* WM_MBUTTONDOWN */
5608
5609 case WM_MOUSELEAVE:
5610 return TREEVIEW_MouseLeave(infoPtr);
5611
5612 case WM_MOUSEMOVE:
5613 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5614 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5615 else
5616 return 0;
5617
5618 case WM_NCPAINT:
5619 if (nc_paint (infoPtr, (HRGN)wParam))
5620 return 0;
5621 goto def;
5622
5623 case WM_NOTIFY:
5624 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5625
5626 case WM_NOTIFYFORMAT:
5627 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5628
5629 case WM_PRINTCLIENT:
5630 case WM_PAINT:
5631 return TREEVIEW_Paint(infoPtr, wParam);
5632
5633 case WM_RBUTTONDOWN:
5634 return TREEVIEW_RButtonDown(infoPtr, lParam);
5635
5636 case WM_SETCURSOR:
5637 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5638
5639 case WM_SETFOCUS:
5640 return TREEVIEW_SetFocus(infoPtr);
5641
5642 case WM_SETFONT:
5643 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5644
5645 case WM_SETREDRAW:
5646 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5647
5648 case WM_SIZE:
5649 return TREEVIEW_Size(infoPtr, wParam, lParam);
5650
5651 case WM_STYLECHANGED:
5652 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5653
5654 /* WM_SYSCOLORCHANGE */
5655
5656 /* WM_SYSKEYDOWN */
5657
5658 case WM_TIMER:
5659 return TREEVIEW_HandleTimer(infoPtr, wParam);
5660
5661 case WM_THEMECHANGED:
5662 return theme_changed (infoPtr);
5663
5664 case WM_VSCROLL:
5665 return TREEVIEW_VScroll(infoPtr, wParam);
5666
5667 /* WM_WININICHANGE */
5668
5669 case WM_MOUSEWHEEL:
5670 if (wParam & (MK_SHIFT | MK_CONTROL))
5671 goto def;
5672 return TREEVIEW_MouseWheel(infoPtr, wParam);
5673
5674 case WM_DRAWITEM:
5675 TRACE("drawItem\n");
5676 goto def;
5677
5678 default:
5679 /* This mostly catches MFC and Delphi messages. :( */
5680 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5681 TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
5682 def:
5683 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5684 }
5685 }
5686
5687
5688 /* Class Registration ***************************************************/
5689
5690 VOID
5691 TREEVIEW_Register(void)
5692 {
5693 WNDCLASSW wndClass;
5694
5695 TRACE("\n");
5696
5697 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5698 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5699 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5700 wndClass.cbClsExtra = 0;
5701 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5702
5703 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5704 wndClass.hbrBackground = 0;
5705 wndClass.lpszClassName = WC_TREEVIEWW;
5706
5707 RegisterClassW(&wndClass);
5708 }
5709
5710
5711 VOID
5712 TREEVIEW_Unregister(void)
5713 {
5714 UnregisterClassW(WC_TREEVIEWW, NULL);
5715 }
5716
5717
5718 /* Tree Verification ****************************************************/
5719
5720 #ifdef NDEBUG
5721 static inline void
5722 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5723
5724 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5725 TREEVIEW_ITEM *item)
5726 {
5727 assert(infoPtr != NULL);
5728 assert(item != NULL);
5729
5730 /* both NULL, or both non-null */
5731 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5732
5733 assert(item->firstChild != item);
5734 assert(item->lastChild != item);
5735
5736 if (item->firstChild)
5737 {
5738 assert(item->firstChild->parent == item);
5739 assert(item->firstChild->prevSibling == NULL);
5740 }
5741
5742 if (item->lastChild)
5743 {
5744 assert(item->lastChild->parent == item);
5745 assert(item->lastChild->nextSibling == NULL);
5746 }
5747
5748 assert(item->nextSibling != item);
5749 if (item->nextSibling)
5750 {
5751 assert(item->nextSibling->parent == item->parent);
5752 assert(item->nextSibling->prevSibling == item);
5753 }
5754
5755 assert(item->prevSibling != item);
5756 if (item->prevSibling)
5757 {
5758 assert(item->prevSibling->parent == item->parent);
5759 assert(item->prevSibling->nextSibling == item);
5760 }
5761 }
5762
5763 static inline void
5764 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5765 {
5766 assert(item != NULL);
5767
5768 assert(item->parent != NULL);
5769 assert(item->parent != item);
5770 assert(item->iLevel == item->parent->iLevel + 1);
5771
5772 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5773
5774 TREEVIEW_VerifyItemCommon(infoPtr, item);
5775
5776 TREEVIEW_VerifyChildren(infoPtr, item);
5777 }
5778
5779 static inline void
5780 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5781 {
5782 TREEVIEW_ITEM *child;
5783 assert(item != NULL);
5784
5785 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5786 TREEVIEW_VerifyItem(infoPtr, child);
5787 }
5788
5789 static inline void
5790 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5791 {
5792 TREEVIEW_ITEM *root = infoPtr->root;
5793
5794 assert(root != NULL);
5795 assert(root->iLevel == -1);
5796 assert(root->parent == NULL);
5797 assert(root->prevSibling == NULL);
5798
5799 TREEVIEW_VerifyItemCommon(infoPtr, root);
5800
5801 TREEVIEW_VerifyChildren(infoPtr, root);
5802 }
5803
5804 static void
5805 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5806 {
5807 assert(infoPtr != NULL);
5808
5809 TREEVIEW_VerifyRoot(infoPtr);
5810 }
5811 #endif
useful hacks and other patches not (yet) suitable for mainline